Download Canon -- BJC-5000

REVISION 0
AUGUST. 1998
QY8-1359-000
COPYRIGHT © 1998 CANON INC. CANON BJC-5000 0898 SC 0.55-0 PRINTED IN JAPAN (IMPRIME AU JAPON)
0898 SC 0.55-0
Application
This manual has been issued by Canon Inc. for qualified persons to learn technical theory,
installation, maintenance, and repair of products. This manual covers all localities where the
products are sold. For this reason, there may be information in this manual that does not apply to
your locality.
Corrections
This manual could include technical inaccuracies or typographical errors due to improvements or
changes in the products. When changes occur in applicable products or in the content of this
manual, Canon will release technical information as the need arises. In the event of major
changes in the contents of this manual over a long or short period, Canon will issue a new editions of
this manual.
The following paragraph does not apply to any countries where such provisions are
inconsistent with local law.
Trademarks
The product names and company names described in this manual are the registered trademarks of
the individual companies.
Copyright
This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not
be copied, reproduced or translated into another language, in whole or in part, without the written
consent of Canon Inc., except in the case of internal business use.
Copyright © 1998 by Canon Inc.
CANON INC.
BJ Products Technical Support Dept
16-1, Shimonoge 3-chome, Takatsu-ku, Kawasaki-shi, Kanagawa 213, Japan
This manual was produced on an Apple Macintosh™ Power Mac 8500/180 personal computer and
Apple LaserWriter™16/600PS-J laser beam printer; final pages were printed on Varityper™ 5300 with
4000-J RIP. All graphics were produced with MACROMEDIA® FREEHAND® 7.0J.
All documents and all page layouts were created with QuarkXPress™ 3.3J.
I. ABOUT THIS MANUAL
This manual is divided into four sections, and contains information required for
servicing the unit.
Part 1: Safety and Precautions
This section tells you how to service the unit safely. It is very important, so please
read it.
Part 2: Product Specifications
This section outlines and specification.
Part 3: Operating Instructions
This section explains how to operate the unit properly. Information required about
installation and service made.
Part 4: Technical Reference
This section outlines the way the unit operates so you can understand it technically.
Part 5: Maintenance
This section explains how to maintain the unit. Descriptions of assembly/disassembly,
adjustment for assembly, troubleshooting procedures, and wiring/circuit diagrams
are given.
REF.
Procedures for assembly/disassembly are not given in this manual.
See the illustrations in the separate Parts Catalog.
I
II. TABLE OF CONTENTS
Page
1- 1
1- 1
1- 2
1- 2
1- 3
1- 4
1- 5
1- 5
1- 5
1- 5
1- 6
1- 6
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1- 7
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1- 9
1 -10
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1 -12
1 -12
Part 1: Safety and Precautions
1. SAFETY PRECAUTIONS
1.1 Moving Parts
1.2 Ink Stains
1.2.1 Ink path
1.2.2 Ink mist
1.3 BJ Cartridge Heat-Up
2. MACHINE PRECAUTIONS
2.1 Handling BJ Cartridges
2.1.1 Unpacking the BJ cartridge
2.1.2 Preventing clogged nozzles
2.1.3 Power on/off
2.1.4 When not using the printer
2.1.5 Ink electroconductivity
2.2 Handling Ink Cartridges (Color BJ Cartridge)
2.2.1 Unpacking the ink cartridge
2.2.2 Protecting the ink cartridge
2.3 Printer Precautions
2.3.1 Preventing deformation of the spur tip
2.3.2 Static electricity damage prevention
2.3.3 Ink leakage prevention
3. MAINTENANCE SERVICE PRECAUTIONS
3.1 EEPROM Data Precautions
3.2 Static Electricity Precautions
3.3 Disassembly and Assembly Precautions
3.4 Built-In Self-Diagnosis
Part 2: Product Specifications
2- 1
2- 1
2- 2
2- 3
2- 3
2- 3
2- 4
2- 4
2- 5
2- 5
2- 6
2- 6
2- 6
2- 7
2- 7
2- 9
2- 9
2- 9
2 -10
2 -11
2 -12
1. PRODUCT OUTLINE
1.1 Product Outline
1.2 Features
1.3 BJ Cartridge
1.3.1 Color BJ cartridge (BC-21e)
1.3.2 Black BJ cartridge (BC-23)
1.3.3 Black BJ cartridge (BC-20) (reference)
1.3.4 Photo BJ cartridge (BC-22e Photo)
1.4 Dual Cartridge System
1.5 BJ Cartridge Container
1.6 Consumables
1.6.1 BJ cartridge (Black, Color, Photo)
1.6.2 Ink cartridge (BC-21e Color BJ Cartridge only)
2. SPECIFICATIONS
2.1 Printer Specifications
2.2 Paper Specifications
2.2.1 Paper size
2.2.2 Paper type
2.2.3 Cut sheet feeder sheet loading capacity
2.2.4 Printing area
2.3 Interface Specifications
II
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3- 4
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3- 7
3- 8
3- 9
3- 9
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3 -10
3 -11
3 -12
3 -13
3 -13
3 -13
3 -14
3 -14
3 -16
3 -17
3 -18
3 -20
3 -20
3 -20
Part 3: Operating Instructions
1. PRINTER SETUP
1.1 Unpacking and Inspection
1.2 Site Selection
1.3 Setup Procedure
1.3.1 Connecting the interface cable
1.3.2 Connecting the AC power cord
1.3.3 Turning on the printer
1.3.4 Installing the BJ cartridge
1.3.5 Replacing the ink cartridge
1.3.6 BJ cartridge container
1.4 Turning the Printer On/Off
1.4.1 Turning the printer on
1.4.2 Turning the printer off
1.5 Paper Settings
1.6 Banner Print
1.7 Names of Parts and Their Functions
2. TRANSPORTING THE PRINTER
2.1 Carrying the Printer
2.2 Transporting the Printer
3. PRINTER SERVICING FUNCTION
3.1 Error Indications
3.2 Cleaning the BJ Cartridge
3.3 Self-Test Printout
3.4 Service Mode
3.5 Service Mode Print Sample
3.5.1 Ripple pattern
3.5.2 Service information printing
Part 4: Technical Reference
4- 1
4- 1
4- 2
4- 3
4- 3
4- 3
4- 4
4- 4
4- 6
4- 7
4- 7
4- 7
4- 8
4- 9
4 -11
4 -11
4 -11
4 -11
4 -11
4 -13
4 -13
4 -13
4 -14
4 -14
1. OVERVIEW
1.1 Printer Block Diagram
1.2 Initialization Sequence Flowchart
1.3 Print Signal Flow
1.3.1 Data between host computer and printer
1.3.2 Print signal flow in the printer
1.4 Print Drive
1.4.1 Print drive control
1.5 Power-Off Sequence Flowchart
2. FIRMWARE
2.1 Interface
2.1.1 Compatible mode
2.1.2 Nibble mode
2.1.3 ECP mode
2.2 Printing System
2.3 Printing Modes
2.3.1 Printing mode
2.3.2 Photo print mode
2.3.3 Multi-drop print mode
2.4 Cartridge Automatic Adjustment Function
2.4.1 Automatic correction of head nozzle alignment
2.4.2 Automatic density correction of left/right cartridge
2.5 Data Separation Function
2.6 Ink Smear Control
III
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4 -15
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4 -15
4 -17
4 -17
4 -18
4 -19
4 -20
4 -26
4 -26
4 -27
4 -29
4 -29
4 -30
4 -32
4 -32
4 -34
4 -36
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4 -37
4 -37
4 -38
4 -41
4 -41
4 -41
4 -42
4 -42
4 -42
4 -42
4 -42
4 -42
4 -43
2.7 Head Overheating Protection Control
2.8 Auto Power-Off
3. PRINTER MECHANICAL SYSTEM
3.1 Overview
3.1.1 Mechanical components
3.2 BJ Cartridge
3.2.1 Black BJ cartridge structure
3.2.2 Color BJ cartridge structure
3.2.3 Photo BJ cartridge structure
3.2.4 Bubble head unit structure
3.3 Purge Unit
3.3.1 Purge unit functions
3.3.2 Purge unit structure
3.4 Carriage
3.4.1 Carriage function
3.4.2 Carriage structure
3.5 Paper Feed/Cut Sheet Feeder
3.5.1 Paper feed/cut sheet feeder function
3.5.2 Sheet feeder structure
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
4.2 Logic Section
4.2.1 Logic section block diagram
4.2.2 Logic section components
5. SENSOR FUNCTIONS
5.1 Pick-Up Roller Sensor
5.2 Paper End Sensor
5.3 Home Position Sensor
5.4 Purge Sensor
5.5 Cover Open Sensor
5.6 Printer Temperature Sensor
5.7 Head Temperature Sensor
5.8 Auto-Alignment Sensor
5.9 Waste Ink Amount Detection
Part 5: Maintenance
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1. Maintenance
1.1 Parts for Regular Replacement
1.2 Consumables
1.3 Periodic Maintenance
2. SERVICE TOOLS
2.1 List of Tools
3. GREASE APPLICATION
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
4.2 Disassembly and Reassembly Cautions
4.2.1 Fastening screws of idler pulley assembly
4.2.2 Carriage guide frame installation
4.2.3 Unlocking the carriage lock
4.3 Logic Board and Waste Ink Absorber Replacement Cautions
4.3.1 Logic board replacement cautions
4.3.2 Cautions after replacing the waste ink absorber
IV
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5- 9
5- 9
5 -10
5 -12
5 -12
5 -12
5 -12
5 -14
5 -14
5 -17
5 -34
5 -34
5 -37
5 -37
5 -37
5 -39
5. ADJUSTMENTS
5.1 Adjustment Point
5.2 When Adjustment is Required
5.2.1 Tools required for adjustment
5.3 Adjustment Procedure
5.3.1 Preparation
5.3.2 Adjustment
6. TROUBLESHOOTING
6.1 Troubleshooting
6.1.1 Overview
6.1.2 Troubleshooting cautions
6.2 Error Condition Diagnostics
6.2.1 Diagnostic flowcharts
6.2.2 Error recovery
7. LOCATION AND SIGNAL ASSIGNMENT
7.1 Logic Board
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.1.1 Logic board
8.2 Circuit Diagrams
V
III. ILLUSTRATION INDEX
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2 -11
2 -17
2 -18
2 -18
2 -19
3- 1
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3- 1
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3- 11
3 -11
3 -12
3 -13
3 -14
3 -17
3 -20
3 -20
4- 1
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4- 4
4- 5
Figure
Figure
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Figure
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3- 12
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3- 14
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3- 16
3- 17
3- 18
4- 1
4- 2
4- 3
4- 4
4- 5
Moving Parts of the Printer
Ink Path
Ink Path of the BJ Cartridge
Ink Mist
BJ Cartridge Aluminum Plate
Removing the Head Cap and Protective Tape
BJ Cartridge
Removing the Ink Cartridge Cap
Ink Outlets (Ink Cartridge)
Spurs
Electrical Contacts of Carriage Ribbon Cable
Capping Position
Electrical System of Printer
Releasing the Plastic Hooks
Printer Appearance
Color BJ Cartridge (BC-21e)
Black BJ Cartridge (BC-23)
Black BJ Cartridge (BC-20 [reference])
Photo BJ Cartridge (BC-22e Photo)
BJ Cartridge Container
BJ Cartridges
Ink Cartridges
Printing Area
Timing Chart (Compatible Mode)
Timing Chart (Nibble Mode)
Timing Chart (ECP Mode)
Timing Chart (ECP Mode/Reverse Mode)
Unpacking
Printer Site Selection Dimensions
Connecting the Interface Cable
Connecting the AC Power Cord
Removing the BJ Cartridge Protectors
BJ Cartridge Handling Precautions
Installing the BJ Cartridge
Removing the Ink Cartridge
Removing the Ink Cartridge Cap
BJ Cartridge Container
Caution! Do not unplug the AC power cord
without pressing the POWER button first
Banner Print
Names of Parts and Their Functions
Carriage Capping Position
Control Panel
Self-Test Printout (Sample)
Ripple Pattern Sample
Service Information Printing Sample
Printer Block Diagram
Initialization Sequence Flowchart
Print Signal Flow
Printing Sequence (Black BJ Cartridge/Standard Mode)
Print Signals
VI
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4 -20
4 -21
4 -21
4 -23
4 -23
Figure
Figure
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4- 6
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4 -28
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4 -31
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4 -37
4 -40
4 -41
5- 3
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5 -34
5 -37
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Figure
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5- 1
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5- 4
5- 5
5- 6
5- 7
5- 8
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5- 10
5- 11
5- 12
Power-Off Sequence Flowchart
Interface Timing (Compatible Mode)
Interface Timing (Nibble Mode)
Interface Timing (ECP Mode)
Timing Chart (ECP Mode/Reverse Mode)
Mechanical System of Printer
Black BJ Cartridge Structure
Color BJ Cartridge Structure
Photo BJ Cartridge Structure
Bubble Jet Nozzles (Partial View)
Nozzle Arrangement
Contact Pad
Bubble Jet Head Driver Block Diagram (Black BJ Cartridge)
Bubble Jet Head Driver Block Diagram
(Color/Photo BJ Cartridge) (Multi-Drop)
Purge Unit
Carriage
Paper Feed Motor Power Switching
Paper Feed
Automatic Printhead and Paper Clearance Adjustment
Paper Separator
Printer Electrical System
Logic Board Block Diagram
Printer Block Diagram
Motor-Driving Circuit
Sensors
Grease Application Points
Idler Pulley Assembly
Carriage Guide Frame
Unlocking the Carriage Lock
Waste Ink Absorber
Head Gap Adjustment
Adjustment Preparation
Head Gap Adjustment (1)
Head Gap Adjustment (2)
Logic Board
Logic Board (Top View)
Logic Board (Bottom View)
VII
IV. TABLE INDEX
Page
3 -10
3 -14
3 -18
4 -12
4 -22
4 -25
4 -26
4 -43
5 -8
Table
Table
Table
Table
Table
Table
Table
Table
Table
3- 1
3- 2
3- 3
4- 1
4- 2
4- 3
4- 4
4- 5
5- 1
Printer Paper Setting
Error Indications
Service Mode
Printing Modes and Driving Method
List of BJ Cartridge Signal Contacts
Head Installation Status and Signal Detection
Ink Consumption During Cleaning (as a Guideline)
List of Sensor Functions
Tools Required for Head Gap Adjustment
VIII
Part 1
SAFETY AND
PRECAUTIONS
Page
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1 -12
1 -12
1. SAFETY PRECAUTIONS
1.1 Moving Parts
1.2 Ink Stains
1.3 BJ Cartridge Heat-Up
2. MACHINE PRECAUTIONS
2.1 Handling BJ Cartridges
2.2 Handling Ink Cartridges (Color BJ Cartridge)
2.3 Printer Precautions
3. MAINTENANCE SERVICE PRECAUTIONS
3.1 EEPROM Data Precautions
3.2 Static Electricity Precautions
3.3 Disassembly and Assembly Precautions
3.4 Built-In Self-Diagnosis
Part 1: Safety and Precautions
BJC-5000
1. SAFETY PRECAUTIONS
1.1 Moving Parts
Be careful not to get fingers, hair, clothing, or personal accessories caught in the
moving parts of the printer. There are several moving parts, driven by the carriage
motor and by the paper feed motor.
Moving parts driven by the carriage motor:
Carriage belt, idler pulley, and carriage.
Moving parts driven by the paper feed motor:
Feed roller, pressure rollers, spurs, pick-up roller, slow down gear, eject roller, and
transmission roller.
Also note that the spurs are made of metal and have sharp edges. Do not touch the
spurs, especially with bare hands. Serious injury could be caused by touching the
spurs unintentionally.
Pick-Up Roller
Idler Pulley
Paper Feed Motor
Slow Down Gear
Carriage Belt
Carriage Motor
Carriage
Pressure Rollers
Spurs
Eject Roller
Feed Roller
Transmission Roller
Figure 1-1 Moving Parts of the Printer
1-1
Part 1: Safety and Precautions
BJC-5000
1.2 Ink Stains
1.2.1 Ink path
Do not touch the ink path during repairs or maintenance to avoid getting ink stains on
the printer, work table, hands, and clothing.
The ink flow path consists of the BJ cartridge nozzles, head cap, head wiper,
maintenance jet receiving section, waste ink tube, and waste ink absorber.
The ink flow path of the color BJ cartridges consists of ink outlets and joint pipes. Do
not touch the ink flow path also, to avoid ink stains.
When the purge unit is removed, waste ink could spill out from the unit’s waste ink
flow path. When repairing or replacing this unit, stop up the waste ink flow path with
a paper towel to prevent the ink from spilling out.
Caution!
Although the ink is non-toxic, it contains organic solvents.
BC-23: Diethylenglycol 111-46-5, glycerin 56-81-5
BC-21e: Isopropyl alcohol 67-63-0, glycerin 56-81-5
BC-22e Photo: Isopropyl alcohol 67-63-0, glycerin 56-81-5, ethylenglycol 107-21-1
BC-20 (reference): Isopropyl alcohol 67-63-0, glycerin 56-81-5, ethylenglycol107-21-1
Never get ink in your eyes and mouth. If any ink should get into your eyes, wash
them out with plenty of water and consult a doctor. If a large quantity of ink is
swallowed accidentally, consult a doctor immediately. Provide the doctor with the
information printed on the BJ cartridge package or label. Since the ink contains
dyes, any ink stain on clothing, etc. shall be permanent.
BJ Cartridge
Carriage
Maintenance Jet
Receiving Section
Head Wiper
Waste Ink Tube
Purge Unit
Waste Ink Absorber
Figure 1-2 Ink Path
1-2
Part 1: Safety and Precautions
BJC-5000
Black BJ Cartridge
Color BJ Cartridge
Joint Pipe
Ink Outlet
Nozzles
Ink Outlet
Joint Pipe
Nozzles
Nozzles
Figure 1-3 Ink Path of the BJ Cartridge
1.2.2 Ink mist
The BJ cartridge ejects ink onto the paper to print. During prolonged or heavy-duty
use of the printer, small amounts of ink mist which splatter off the printing paper
during printing can be deposited on the inside of the front cover and platen. Ink on
these parts can cause stains on the printing paper, hands, or clothing. Wipe the ink
off these parts periodically with a soft moist cloth.
Front Cover
Platen
Figure 1-4 Ink Mist
1-3
Part 1: Safety and Precautions
BJC-5000
1.3 BJ Cartridge Heat-Up
Do not touch the aluminum plate of the BJ cartridge. This aluminum plate heats up
during printing. It will become very hot during prolonged and continuous printing
sessions or when printing is attempted even after the cartridge has run out of ink.
Aluminum Plate
Caution! High Temperature!
Figure 1-5 BJ Cartridge Aluminum Plate
NOTE
REF.
This printer is provided with a protective mechanism for the overheating of
the BJ cartridge. A head temperature (diode) sensor in the BJ cartridge
detects the temperature levels for activating the protection mechanism.
To prevent the user from touching the hot aluminum plate of the head
when the head temperature becomes high, the carriage will not move to
the cartridge replacement position even when the user opens the front
cover. During this time, the printer beeps 5 times and the indicator lights
in orange. If this happens, wait for a while and then either press the
RESUME button or close the front cover once and open it again.
If the head temperature increases further, printing will be stopped due to
the head temperature error.
When the printer stops printing due to a head temperature error, follow the
required troubleshooting procedure in “Part 5: 6, TROUBLESHOOTING” (page
5-12).
1-4
Part 1: Safety and Precautions
BJC-5000
2. MACHINE PRECAUTIONS
2.1 Handling BJ Cartridges
2.1.1 Unpacking the BJ cartridge
Do not unpack the BJ cartridge until it is ready to be used. Before installing the BJ
cartridge in the printer, remove the protective head caps from the nozzles and peel off
the protective tape as shown in the figure below.
Never re-use the removed protective head caps and protective tape. This could cause
printing troubles.
1
2
Color BJ Cartridge (BC-21e)
Black BJ Cartridge
(BC-23/BC-20 [reference])
Cap
Tape
Photo BJ Cartridge (BC-22e Photo)
Figure 1-6 Removing the Head Cap and Protective Tape
2.1.2 Preventing clogged nozzles
Never touch the nozzles of the BJ cartridge or wipe them with tissue paper. Any
foreign substance could easily clog the nozzles. Also, handle the inner joint pipe of the
color BJ cartridge carefully to avoid clogging it and thus blocking the ink feed.
To prevent clogging the nozzles with foreign substances and dried-out ink, install the
BJ cartridge in the printer after the head cap and protective tape are removed (so that
the printer caps the nozzles). When storing the BJ cartridge, make sure the nozzles of
the cartridge are capped or store the cartridge in the BJ cartridge container. Foreign
substances on the nozzles or dried up ink will result in poor ink suction. Never
disassemble or assemble the BJ cartridge and do not wash it.
NOTE
When the nozzles are clogged, white streaks will appear across the printed
areas periodically. If this problem persists even after cleaning, replace the
BJ cartridge with a new one.
1-5
Part 1: Safety and Precautions
BJC-5000
Black BJ Cartridge
Color BJ Cartridge
Joint Pipe
Ink Outlet
Nozzles
Joint Pipe
Ink Outlet
Nozzles
Nozzles
Figure 1-7 BJ Cartridge
2.1.3 Power on/off
When the printer is turned off with the POWER button, the printer automatically caps
the nozzles of the BJ cartridge for their protection and to prevent ink leakage.
If the AC power cord of the AC adapter is unplugged unintentionally and the printer is
turned off without pressing the POWER button, the nozzles may not be capped. In
such cases, plug in the AC power cord of the AC adapter, turn on the power of the
printer, and then press the POWER button to turn it off again.
CAUTION
If the nozzles are not capped properly, the ink may either dry out and clog
the nozzles or leak out.
2.1.4 When not using the printer
Leave the BJ cartridge in the printer or store it in the BJ cartridge container when the
printer is not in use. Also keep the BJ cartridge installed in the printer or store it in
the BJ cartridge container while carrying, transporting, or storing the printer.
CAUTION
If the BJ cartridge is removed from the printer and left lying about,
printing defects may occur when it is used again due to clogging of nozzles
and dried-out ink. If the BJ cartridge is removed to relocate the printer,
ink could leak out from the cap section.
2.1.5 Ink electroconductivity
The ink in the BJ cartridge is electroconductive. If the ink leaks into the printer’s
mechanical parts, use a paper towel to wipe off completely. If the ink leaks into the
printer’s electrical parts, use a tissue paper to wipe off completely. If ink is spilled
under the IC chips on the printed circuit board (PCB) and is difficult to clean, replace
the PCB.
CAUTION
Do not connect the AC power cord when ink has leaked into the electrical
parts. This could damage the circuitry.
1-6
Part 1: Safety and Precautions
BJC-5000
2.2 Handling Ink Cartridges (Color BJ Cartridge)
2.2.1 Unpacking the ink cartridge
Do not unpack an ink cartridge until it is ready to be used. Before installing it in the
color BJ cartridge, remove the ink cartridge from its’ package and remove the cap that
covers the ink outlets.
Cap
Figure 1-8 Removing the Ink Cartridge Cap
2.2.2 Protecting the ink cartridge
To prevent poor ink suction due to the attachment of foreign substances to the joint
pipes connected to the BJ cartridge, never touch the ink outlets of the ink cartridge.
After removing the cap from the ink cartridge, immediately install the ink cartridge in
the BJ cartridge to prevent the nozzles from clogging due to dried-out ink. Do not
remove an ink cartridge from the BJ cartridge unless it needs to be replaced.
Color Ink Cartridge
Yellow Ink Outlet
(Joint Pipe Contact)
Magenta Ink Outlet
(Joint Pipe Contact)
Black Ink Cartridge
Cyan Ink Outlet
(Joint Pipe Contact)
Black Ink Outlet
(Joint Pipe Contact)
Figure 1-9 Ink Outlets (Ink Cartridge)
1-7
Part 1: Safety and Precautions
BJC-5000
2.3 Printer Precautions
2.3.1 Preventing deformation of the spur tip
Do not touch the tips of the spurs. The spurs transfer and eject the paper after
printing. They have a delicate structure and could be easily deformed. Since the tip
of the spurs have a very small contact surface with the paper, the ink adhering to the
spurs is minimal. The spur cleaner wipes off the adhered ink from the spurs to
prevent smudges on the paper. If the spurs are touched and the tip of the spurs
become deformed, the contact surface with the paper might increase, causing more
ink to adhere to each spur. As a result, should the spur cleaner fail to wipe the ink
from the spurs completely, a dotted-line smear may be printed on the paper or a trace
may be produced. If this happens, replace the spur unit with a new one.
Spur Cleaners
Spurs
Figure 1-10 Spurs
2.3.2 Static electricity damage prevention
Never touch the electrical contacts to the cartridge of the carriage ribbon cable. Any
static electricity produced by clothing and friction could damage the electrical
components or change their electrical characteristics.
Contact Points
Figure 1-11 Electrical Contacts of Carriage Ribbon Cable
1-8
Part 1: Safety and Precautions
BJC-5000
2.3.3 Ink leakage prevention
Transport, pack, or store the printer with the BJ cartridge installed in the printer.
Otherwise, the ink in the purge unit could flow backward and spill out inside the
printer. Before packing the printer, make sure the carriage is at the capping position
(the right end of the carriage shaft).
The nozzles of the BJ cartridge are automatically capped when the printer is turned off
by pressing the POWER button. Do not unplug the AC power cord of the AC adapter
before turning off the printer with the POWER button. Otherwise, the printer will be
stopped without capping the nozzles, which could cause ink leaks and ink bonding.
In case this happens, plug in the AC power cord, turn on the printer by pressing the
POWER button, turn it off by pressing the POWER button, and then unplug the AC
power cord again.
BJ Cartridge
Head Cap
Figure 1-12 Capping Position
1-9
Part 1: Safety and Precautions
BJC-5000
3. MAINTENANCE SERVICE PRECAUTIONS
3.1 EEPROM Data Precautions
This printer keeps track of various function settings, the total number of sheets printed,
and the total waste ink amount. Such information is stored in the EEPROM on the
logic board. Heed the following precautions during maintenance servicing.
1) Before servicing
Check the data stored in the printer with a test print (only for the total number of
sheets printed) and a service information print in the Service Mode. The total
number of sheets printed can provide an idea of how much the printer has been
used.
2) When the logic board (EEPROM) is replaced or if the memory data was unintentionally reset
Check the waste ink absorbers, replace them if necessary, and set the total waste ink
amount counter according to instructions in “Part 5: 4.3, Logic Board and Waste Ink
Absorber Replacement Cautions” (page 5-6). The waste ink counter total can be set to
0% (clearing the data), 25%, 50%, and 75%. If this task is neglected, a “waste ink
full” error may not occur even when the waste ink amount exceeds the full capacity
and waste ink may start leaking, depending on the waste ink amount already
absorbed by the waste ink absorbers.
The memory data in the replacement logic board (EEPROM) is not defined. After
replacing the logic board (EEPROM), reset the EEPROM. Check the above waste ink
absorbers and set the total waste ink amount counter. After resetting the EEPROM,
install the black BJ cartridge and calibrate the auto-alignment sensor. If the
calibration is not performed, an EEPROM error will occur when the printer is turned
on.
3) After waste ink absorber replacement
If the waste ink absorbers are replaced when the “waste ink full” error or another
error occurs, reset the total waste ink amount counter of the EEPROM.
CAUTION
Once the memory data of EEPROM is reset, the data cannot be checked by
a test print in the Service Mode. To check the stored data, be sure to
execute a test print in the Service Mode before resetting the EEPROM.
When the EEPROM is reset, all data including the various settings, total
number of sheets printed, and total waste ink amount are reset. The total
number of sheets printed cannot be incremented using the control panel.
1-10
Part 1: Safety and Precautions
BJC-5000
REF.
This printer keeps track of the estimated waste ink amount based on the
condition of printer usage immediately after the printer is started. To
prevent ink leakage due to the waste ink absorption capacity being
exceeded, the printer stops printing and displays an error when the waste
ink amount nears the full waste ink absorption capacity. The printer
operation can be restarted by pressing the RESUME button. If the printer is
used in this condition, the “waste ink full” error is displayed. See “Part 3:
3.4 Service Mode” (page 3-18) for information about checking the memory
data using a test print or the Service Mode and for resetting procedure.
If the printer operation stops due to “waste ink full” or other errors, follow
the required troubleshooting procedure in “Part 5: 6, TROUBLESHOOTING”
(page 5-12).
3.2 Static Electricity Precautions
Static electricity produced by friction of clothing could damage the electrical parts or
change their electrical characteristics. Before disassembling the printer to perform any
servicing, touch a metallic object that is properly grounded to discharge any built-up
static electricity. For example, a wrist strap can be used to discharge built-up static
electricity.
Before discharging built-up static electricity, do not touch electrical parts such as the
logic board and contacts to the BJ cartridge of the carriage ribbon cable while the
carriage ribbon cable is connected to the logic board (see Figure 1-11).
Logic Board
AC Adapter
Figure 1-13 Electrical System of Printer
1-11
Part 1: Safety and Precautions
BJC-5000
3.3 Disassembly and Assembly Precautions
The printer has a large number of plastic parts. When you disassemble the printer, be
very careful not to break or bend the plastic hooks.
CAUTION
Some plastic parts are made of highly rigid material containing glass fibers
to improve precision. Such material have low viscosity, however, and the
plastic hooks can break easily. When you disassemble the printer, use a
screwdriver and do not apply excessive force on the plastic hooks.
Hook
Never apply excessive force
to release a hook.
Figure 1-14 Releasing the Plastic Hooks
3.4 Built-in Self-Diagnosis
The printer is provided with a self-diagnosis feature which analyzes hardware defects.
The results of the self-diagnosis are shown by the indicators and the beeper. See “Part
3: 3.1, Error Indications” (page 3-14) for more information.
1-12
Part 2
PRODUCT
SPECIFICATIONS
Page
2- 1
2- 1
2- 2
2- 3
2- 5
2- 5
2- 6
2- 7
2- 7
2- 9
2 -12
1. PRODUCT OUTLINE
1.1 Product Outline
1.2 Features
1.3 BJ Cartridge
1.4 Dual Cartridge System
1.5 BJ Cartridge Container
1.6 Consumables
2. SPECIFICATIONS
2.1 Printer Specifications
2.2 Paper Specifications
2.3 Interface Specifications
Part 2: Product Specifications
BJC-5000
1. PRODUCT OUTLINE
1.1 Product Outline
This desktop color printer achieves high-speed printing by means of a dual cartridge
system. It also realizes maximum 1440 (vertical) x 720 (horizontal) dpi high-resolution
printing by using the printer driver to perform the main data processing.
Moreover, this printer achieves high image printing by adopting a “drop modulation
technology” in the color BJ cartridge and photo BJ cartridge. High-density
monochrome printing is offered with a black BJ cartridge that adopts a newly developed
ink. The reproduction of color graduations has been improved through the combined
use of these cartridges.
In addition, the printing environment is further expanded by the possibilities of printing
on up to A3-size paper and banner (long paper) printing by manual feeding. This is a
high-performance standard machine.
Operation Panel
Paper Guide
Paper Support
Front Cover
Cut Sheet Feeder
BJ Cartridge Container
Interface Connector
Paper Output Tray
Paper Output Tray Extension Guide
Manual Feeding Slot
AC Adapter
Figure 2-1 Printer Appearance
2-1
Part 2: Product Specifications
BJC-5000
1.2 Features
1. High-speed printing by dual cartridge system
2. High-resolution printing of maximum 1440 (vertical) x 720 (horizontal) dpi
3. Easy-to-replace, high-speed and high-quality printing-compliant BJ cartridge
Color BJ Cartridge (BC-21e): Adopts a drop modulation technology. Has separate
ink tanks (Bk) (Y+M+C) and head with 136 nozzles in a
vertical line; 64 nozzles (Bk) + 24 nozzles x 3 (Y, M, C).
Black BJ Cartridge (BC-23): 128-nozzle and head single unit type (high-density
type)
Photo BJ Cartridge (BC-22e Photo): Drop modulation technology has been adopted.
136-nozzle and head single unit type
Black BJ Cartridge (BC-20 [reference]): 128-nozzle and head single unit type
Ink cartridge: Black ink cartridge and tricolor (Y, M, C) ink cartridge (3-color ink
single unit)
(The previous model Color BJ Cartridge (BC-21) and Photo BJ Cartridge (BC-22
Photo) that are not compliant with the drop modulation technology cannot be
used.)
4. The auto-alignment function which corrects the printing position displacement of
the left and right cartridges and printing direction displacement caused by bidirectional printing has been provided to achieve image maintenance.
5. Exclusive Windows machine using a dedicated driver. Emulation is not supported.
6. A BJ cartridge container is supplied with the printer for storing the removed BJ
cartridge.
7. ECP mode compliant.
8. Banner printing capabilities.
9. Built-in automatic cut sheet feeder without paper lever.
10. Improved operability. Provides an automatic head-to-paper distance adjustment
mechanism (no paper thickness adjustment lever). Also, the cartridge comes to the
replacement position when the cover is opened (no cartridge button).
11. Built-in AC adapter for power supply. (Assembled at the factory before shipment.)
12. Can print on up to A3-size paper by manual feed. (Up to A4/LTR-size full bleed
with ASF.) When printing on A3-size paper, only the left BJ cartridge is used.
(Either monochrome or color printing is enabled and photo printing is disabled
when using A3-size paper.)
13. The printer driver supports an automatic power off feature.
14. The printer can achieve high resolution printing because the main data processing
is performed by the printer driver. Note on the other hand that this printer
requires a more advanced host computer operating environment.
1) Windows95/98
2) CPU: Min. 166MHz
3) RAM: Min. 16MB
4) HDD: Min. 40MB of free space
5) Printer port: ECP/DMA
2-2
Part 2: Product Specifications
BJC-5000
1.3 BJ Cartridge
1.3.1 Color BJ cartridge (BC-21e)
The color BJ cartridge BC-21e for color printing is disposable. The color BJ cartridge
has a printhead with 136 nozzles and a replaceable ink cartridge (two types, black and
color).
When the ink runs out or more than 6 months have elapsed since the cartridge was
removed from the package, or if the print quality does not improve even after cleaning
the head five times or more, replace the ink cartridge with a new one.
Also, if the print quality does not improve following replacement of the ink cartridge
and after cleaning the head five times or more, replace the BJ cartridge. Since the
three color inks are integrated, the entire color ink cartridge must be replaced when
one color ink runs out.
The drop modulation technology minimizes print graininess by using small-size dots
for printing in low density areas. On the other hand, it maintains the printing speed
and achieves high-quality printing by using large-size dots effectively in high density
areas. A total of 136 head nozzles are provided in a row: 24 nozzles for yellow ink, 24
nozzles for magenta ink, 24 nozzles for cyan ink, and 64 nozzles for black ink.
The printer can print out approximately 225 sheets with black ink (1500-character
standard text pattern in the Standard mode) and approximately 100 sheets with color
ink (7.5% duty per color pattern in the Standard mode).
Figure 2-2 Color BJ Cartridge (BC-21e)
1.3.2 Black BJ cartridge (BC-23)
The black BJ cartridge BC-23 for ultra-high-speed monochrome printing is disposable.
The cartridge consists of a printhead with 128 nozzles and an ink cartridge.
When the ink runs out or more than 6 months have elapsed since the cartridge was
removed from the package, or if the print quality does not improve even after cleaning
the head five times or more, replace the BJ cartridge with a new one.
High-density monochrome printing is enabled with the black BJ cartridge which uses
a newly developed ink. The printer can print approximately 900 sheets with the black
BJ cartridge (1500-character standard text pattern in the Standard mode).
Figure 2-3 Black BJ Cartridge (BC-23)
2-3
Part 2: Product Specifications
BJC-5000
1.3.3 Black BJ cartridge (BC-20) (reference)
The black BJ cartridge (BC-20) for ultra-high-speed monochrome printing is
disposable. The cartridge consists of a printhead with 128 nozzles and an ink
cartridge.
When the ink runs out or more than 6 months have elapsed since the cartridge was
removed from the package, or if the print quality does not improve even after cleaning
the head five times or more, replace the BJ cartridge with a new one.
The printer can print approximately 900 sheets with the black BJ cartridge (1500character standard text pattern in the Standard mode).
Figure 2-4 Black BJ Cartridge (BC-20 [reference])
1.3.4 Photo BJ cartridge (BC-22e Photo)
The photo BJ cartridge (BC-22e Photo) for photo printing is disposable. The photo BJ
cartridge consists of a printhead with 136 nozzles and an ink cartridge.
When the ink runs out or more than 6 months have elapsed since the cartridge was
removed from the package, or if the print quality does not improve even after cleaning
the head five times or more, replace the BJ cartridge with a new one. Since the four
color inks are integrated, the entire photo BJ cartridge must be replaced when one
color ink runs out.
The drop modulation technology minimizes graininess by using the small-size dots for
printing in low density areas. On the other hand, it maintains the printing speed and
achieves high-quality printing by using the large-size dots effectively in high density
areas. A total of 136 head nozzles are provided in a row: 24 nozzles for yellow ink, 24
nozzles for magenta ink, 24 nozzles for cyan ink, and 64 nozzles for black ink.
The printer can print approximately 50 sheets with the photo BJ ink cartridge (Photo
Standard mode). Use high resolution paper for printing.
Figure 2-5 Photo BJ Cartridge (BC-22e Photo)
2-4
Part 2: Product Specifications
BJC-5000
1.4 Dual Cartridge System
This printer has two BJ cartridges installed on the carriage to minimize the moving
distance of the carriage during printing and thus improving printing speed. This
system is called the dual cartridge system. The BJ cartridge can be used with the
following combinations.
1) BC-23 & BC-23 (BC-20 & BC-20 [reference]): Head configuration to achieve the
highest speed during monochrome printing.
Resolution: Plain paper (High Mode: 720x720dpi, Standard Mode:
360x360dpi)
Resolution: Other specified papers (High Mode: 1440x720dpi, Standard
Mode: 720x720dpi)
2) BC-21e & BC-21e: Head configuration to achieve the highest speed during color
printing.
Resolution: Plain paper (High Mode: 720x720dpi, Standard Mode:
360x360dpi)
Resolution: Other specified papers (High Mode: 1440x720dpi, Standard
Mode: 720x720dpi)
3) BC-21e & BC-23 (BC-21e & BC-20 [reference])*: Head configuration to achieve the
optimal balance in monochrome and color printing.
Resolution: Plain paper (High Mode: 720x720dpi, Standard Mode:
360x360dpi)
Resolution: Other specified papers (High Mode: 1440x720dpi, Standard
Mode: 720x720dpi)
4) BC-21e & BC-22e Photo*: Head configuration to obtain the highest print quality.
Resolution: Plain paper (High Mode: 1440x720dpi, Standard Mode:
720x720dpi)
Resolution: Other specified papers (High Mode: 1440x720dpi, Standard
Mode: 720x720dpi)
*: The BJ cartridge combinations 3) and 4) can be used by installing the BC-21e
cartridge on the left side of the carriage. The BC-23, BC-21e, and BC-20 (reference)
cartridges can be installed independently on the left side of the carriage for printing.
If the right BJ cartridge ink run-out is detected when Auto Head Alignment is executed
from the printer driver, printing is performed using the left BJ cartridge. When printing
on A3-size paper, only the left BJ cartridge is used for printing.
1.5 BJ Cartridge Container
The BJ cartridge container is used for storing the BJ cartridge when it is removed from
the printer. When you store a BJ cartridge in the container, be sure to close the cover
tightly.
A single BJ cartridge container can store either of the following cartridges: BJ cartridge
(BC-23) or black BJ cartridge (BC-20 [reference]), color BJ cartridge (BC-21e), or photo
BJ cartridge (BC-22e Photo). Store the color BJ cartridge with the ink cartridge is
installed in it. The BJ cartridge containers can be coupled together.
Figure 2-6 BJ Cartridge Container
2-5
Part 2: Product Specifications
BJC-5000
1.6 Consumables
1.6.1 BJ cartridge (Black, Color, Photo)
The consumable black BJ cartridge (BC-23 and BC-20 [reference]), color BJ cartridge
(BC-21e), and photo BJ cartridge (BC-22e) available in the market are identical to
those supplied with the printer. Only their packages are different.
Color BJ Cartridge
Black BJ Cartridge
Photo BJ Cartridge
Figure 2-7 BJ Cartridges
1.6.2 Ink cartridge (BC-21e Color BJ Cartridge only)
The two types of consumable ink cartridges available in the market are the black ink
cartridge and color ink cartridge. They are identical to those mounted in the color BJ
cartridge (BC-21e). Either cartridge can be used for half a year after the seal is
opened. The number of sheets that can be printed are as follows.
Black ink cartridge: Approx. 225 sheets (Standard mode) (1500-character standard
text pattern)
Color ink cartridge: Approx. 100 sheets (Standard mode) (7.5% duty per color pattern)
Color Ink Cartridge
Black Ink Cartridge
Figure 2-8 Ink Cartridges
2-6
Part 2: Product Specifications
BJC-5000
2. SPECIFICATIONS
2.1 Printer Specifications
1. Type
Desktop serial color bubble jet printer
2. Paper feeding method
Auto feeding and manual feeding
3. Cut sheet feeder capacity
Plain paper:
64g/m2
High resolution paper:
OHP film:
Back print film:
Envelopes:
Max. thickness 13 mm (Approx. 130 sheets of
paper)
Max. 100 sheets
Max. 30 sheets
Max. 10 sheets
Max. 15 envelopes (Commercial number-10 and
European DL-size envelopes)
Glossy photo paper:
1 sheet
T-shirt transfers:
1 sheet
Fabric sheet:
1 sheet
A3-size paper can be loaded 1 sheet at a time through the manual feeding slot.
Two to six sheets of banner paper can be loaded from the manual feeding slot.
4. Paper weight
Automatic feeding:
Manual feeding:
64 to 105g/m2 (17 lbs to 28 lbs)
64 to 550g/m2 (17 lbs to 146 lbs), Max. thickness 0.8 mm
5. Printing speed (burst speed)
Monochrome printing (BC-21e × 2):
360cps (10 cpi)
Monochrome printing (BC-20 × 2/BC-23 x 2):
720cps (10 cpi)
6. Printing direction
Bi-directional and uni-directional (The print direction is automatically changed
according to the print mode.)
7. Max. printing width
ASF:
Manual feeding:
215.9 mm (8.5”)
290.2 mm (11.4”)
8. Line feed speed
Approx. 120ms/line (128/360” line)
9. Built-in printing control mode
Canon extended (native) mode
10. Line feed pitch (n: programmable)
n/360”, n/720”, n/1440”
11. Buffer
Print buffer: Approx. 512kB
2-7
Part 2: Product Specifications
BJC-5000
12. Interface
IIEEE 1284-compatible bi-directional parallel interface
(Compatible/nibble/ECP modes are supported.)
13. BJ cartridge
Color BJ cartridge (BC-21e)
Type:
Color BJ cartridge with separate ink tanks
Printhead: 136 nozzles (vertically-lined), Blk (64 nozzles) + Y, M, C (24 nozzles × 3)
Ink colors: Black, cyan, magenta, yellow
Service life: Approx. 225 sheets (in the standard mode with 1500-character
pattern) with a black cartridge
Approx. 100 sheets (in the standard mode) with a color cartridge (7.5%
duty per color pattern)
Weight:
Approx. 85g (3.0 oz) (including black and color ink tanks)
Black BJ cartridge (BC-23 and BC-20 [reference])
Type:
Black BJ cartridge with ink tank inside
Printhead: 128 nozzles (vertically-lined)
Ink colors: Black
Service life: Approx. 900 sheets (in the standard mode) per cartridge
Weight:
Approx. 85g (3.0 oz)
Photo BJ cartridge (BC-22e Photo)
Type:
Color BJ cartridge with ink tanks inside
Printhead: 136 nozzles (vertically-lined), Blk (64 nozzles) + Y, M, C (24 nozzles × 3)
Ink colors: Black, cyan, magenta, yellow
Service life: Approx. 50 sheets (in the photo standard mode) per cartridge
Weight:
Approx. 80g (2.8 oz)
14. Sensor functions
Paper run-out:
Provided
Installation of cartridge:
Provided
Cartridge identification:
Provided
Waste ink amount:
Provided
Cover open:
Provided
Ink run-out:
Provided*
Paper width:
None
*A function is provided to determine whether the ink has run out by a specific
pattern printed from the driver. There is no function, however, to notify the run out
of ink during a normal printing operation.
15. Acoustic noise level
Approx. 48 dB(A)/standard mode (Sound pressure level: Compliant with ISO 9296)
16. Environmental conditions
Operating temperature:
Operating humidity:
Storage temperature:
Storage humidity:
5 °C to 35 °C (41 °F to 95 °F)
10% to 90% RH (no condensation)
0 °C to 35 °C (32 °F to 95 °F)
5% to 90% RH (no condensation)
2-8
Part 2: Product Specifications
BJC-5000
17. Power source
USA/Canada
UK/Australia
Europe
Voltage/Frequency
AC 120V 60 Hz
AC 240V 50 Hz
AC 230V 50 Hz
Power consumption
Stand-by status
Max. 40 W
Approx. 6 W
18. Dimensions
498 mm (W) × 280 mm (D) × 222 mm (H)
19. Weight
Approx. 5.3kg (11.6 lbs) (including two BJ cartridges)
2.2 Paper Specifications
2.2.1 Paper size
A3 (297 mm × 420 mm)
A4 (210 mm × 297 mm)
A4+ (224 mm × 336 mm)
A5 (148 mm × 210 mm)
B4 (257 mm × 364 mm)
B5 (182 mm × 257 mm)
Letter (216 mm × 279 mm)
Letter+ (229 mm × 338 mm)
Legal (216 mm × 356 mm)
Commercial number 10 envelope (241 mm × 105 mm)
European DL-size envelope (220 mm × 110 mm)
Banner Paper (210 mm × 297 mm, 216 mm × 279 mm)
Tabloid (279 mm × 432 mm)
2.2.2 Paper type
Plain paper (Letter, Legal, A3, A4, A5, B4, B5)
Color bubble jet paper (Canon Bubble Jet Paper LC-301/Letter, Legal, A3, A4)
High resolution paper (Canon High Resolution Paper HR-101/Letter, A3, A4)
Glossy photo paper (Canon Glossy Photo Paper GP-201/Letter, A4)
High gloss film (Canon High Gloss Film HG-201/Letter, A3, A4)
OHP film (Canon Transparency Film CF-102/Letter, A4)
Back print film (Canon Back Print Film BF-102/Letter, A3, A4)
Fabric (Canon Fabric Sheet FS-101/Legal)
Banner (Canon Banner Paper BP-101/Letter, A4)
Envelopes (Commercial Number-10 or European DL-size envelopes)
T-shirt transfers (Canon T-Shirt Transfers TR-201/Letter, Tabloid)
2-9
Part 2: Product Specifications
BJC-5000
2.2.3 Cut sheet feeder sheet loading capacity
Plain paper:
High resolution paper:
OHP film:
Back print film:
Envelopes:
Glossy photo paper:
T-shirt transfers:
Fabric:
NOTE
Max. 13 mm (Approx. 130 sheets of 64g/m2 paper)
Max. 100 sheets
Max. 30 sheets
Max. 10 sheets
Max. 15 envelopes
1 sheet
1 sheet
1 sheet
A3-size paper can be loaded from the manual feeding slot 1 sheet at a
time. Two to six sheets of banner paper can be loaded from the manual
feeding slot.
2-10
Part 2: Product Specifications
BJC-5000
2.2.4 Printing area
A4+ size, Letter+ size
A3, A4, A5, B5 size
(1)16.0mm
3.0mm
28.0mm
29.3mm
(2)20.5mm
20.5mm
16.5mm
3.4mm
5.1mm
3.4mm
Letter, Legal, Tabloid size
5.1mm
Commercial Number-10 and European DL-size
(1)16.0mm
(2)20.5mm
(3)12.0mm
(4)21.0mm
3.0mm
29.3mm
28.0mm
3.0mm
20.5mm
20.5mm
16.5mm
6.4mm
11.3mm
: Guaranteed printing area
(1)20.5mm
(3)21.6mm
(4)12.6mm
16.5mm
6.4mm
: Possible printing area
6.4mm
Banner paper
16.5mm
3.1mm
3.4mm (A4)
6.4mm
(LTR)
1
3.4mm (A4)
6.4mm
(LTR)
(1)
(2)
(3)
(4)
2
3
4
5
*: When printing 6 pages
20.5mm
6
40mm*
Printed with the black BJ cartridge
Printed with the color BJ cartridge or the photo BJ cartridge
Printed with the black BJ cartridge on Legal-size paper
Printed with the color BJ cartridge or the photo BJ cartridge on Legal-size paper
Figure 2-9 Printing Area
2-11
Part 2: Product Specifications
BJC-5000
2.3 Interface Specifications
1) Interface type
IEEE1284-compatible bi-directional parallel interface
2) Data transfer
8-bit parallel transfer (Supports the Compatible mode/Nibble mode/ECP mode.)
3) Signal voltage levels
Low: 0.0V to +0.8V
High: +2.4V to +5.0V
4) Input/output
Each signal pulled up with +5V.
5) Interface cable
Type:
Twisted-pair double shielded cable
Material: American Wire Gauge (AWG) No. 28 or larger
Length: Max. 2.0m (6.6 feet)
6) Interface connectors
On printer:
Amphenol 57-40360 (or equivalent)
On cable:
Amphenol 57-30360 (or equivalent)
7) Input/output signals and pin assignment
Compatible mode
No.
Signal
I/O
No.
Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
STROBE
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
ACKNLG
BUSY
P.E.
SELECT
AUTO FEED XT
N.C*2
GND
GND
+5.0V*4
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
IN
...
IN
...
...
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
STROBE-RET
DATA1-RET
DATA2-RET
DATA3-RET
DATA4-RET
DATA5-RET
DATA6-RET
DATA7-RET
DATA8-RET
ACKNLG-RET
BUSY-RET
INIT-RET
INIT
ERROR
GND
N.C*2
+5.0V*3
SELECT IN
*1. All-RETs are connected to GND.
*2. N.C means no connection.
*3. The level is pulled up with +5.0V through 3.3k resistor.
*4. The level is pulled up with +5.0V through 390 resistor.
2-12
I/O
*1
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
Part 2: Product Specifications
BJC-5000
Nibble mode
No.
Signal
I/O
No.
Signal
I/O
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
HostClk
Data1
Data2
Data3
Data4
Data5
Data6
Data7
Data8
PtrClk
PtrBusy
AckDataReq
Xflag
HostBusy
Not Defined
Gnd
Gnd
Vcc
IN
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
...
...
...
...
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
INIT
DataAvail
Not Defined
Not Defined
Not Defined
1284Active
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
ECP mode
No.
Signal
I/O
No.
Signal
I/O
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
HostClk
Data1
Data2
Data3
Data4
Data5
Data6
Data7
Data8
PeriphClk
PeriphAck
AckReverse
Xflag
HostAck
Not Defined
Gnd
Gnd
Vcc
IN
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
OUT
OUT
OUT
OUT
IN
...
...
...
...
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
ReverseReq
PeriphReq
Not Defined
Not Defined
Not Defined
1284Active
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
2-13
Part 2: Product Specifications
BJC-5000
8) Input/output signals
Compatible Mode
STROBE [Input]
This signal is used to read Data1 to Data8. This signal becomes valid after the
BUSY signal goes from HIGH to LOW and the printer outputs an ACKNLG signal.
This signal is normally HIGH and the printer receives data after the signal goes
LOW.
DATA1 to 8 [Input]
The printer receives data on the STROBE signal. The status of each bit of this
signal must be maintained for at least 280 ns from the leading edge of the STROBE
signal.
ACKNLG [Output]
This signal is a response signal to the STROBE signal. The host computer cannot
output the next STROBE signal until this signal is output. When the power is
turned on or when the BUSY goes from HIGH to LOW for the input of the INIT
signal, this signal is sent regardless of the STROBE signal.
BUSY [Output]
When this signal is HIGH, the printer is BUSY; when it is LOW, the printer is
READY. This signal goes from LOW to HIGH when data is received or when an error
occurs (paper-out, paper jam).
P.E. [Output]
If the printer is unable to feed paper even when the feeding operation is executed by
the printer, this signal goes from LOW to HIGH. At this time, the BUSY signal goes
HIGH and the SELECT and ERROR signals go LOW. The signal goes LOW when the
paper is set and fed. At this time, the ERROR and SELECT signals go from LOW to
HIGH.
SELECT [Output]
When the printer is READY, this signal goes HIGH. This signal goes LOW when an
error occurs (paper-out, paper jam).
AUTO FEED XT [Input]
When this signal is LOW, the automatic line feed mode (Carriage Return and Line
Feed) is effective. The printer can read this signal only when the printer is turned
on or is initialized by the INIT signal.
INIT [Input]
When this signal goes LOW, the printer is put on BUSY. The printer is reset when
the signal goes from LOW to HIGH.
The pulse width of this signal must be at least 50 µs at the printer side.
ERROR [Output]
This signal goes LOW when the printer detects an error and thus notifies the host
computer that the printer is put in the error status (paper-out, paper jam).
SELECT IN [Input]
When this signal is HIGH, the printer is put in the online status.
Nibble Mode
Host Clk [Input]
STROBE signal to read Data 1 to Data 8.
Negotiation phase:
Trigger signal to send the compatible protocol to the printer.
Data 1 to Data 8 [Input]
The printer receives data on the Host Clk signal. The state of each bit of this signal
must be maintained for at least 0.5 µs from the leading edge of the Host Clk signal.
2-14
Part 2: Product Specifications
BJC-5000
Ptr Clk [Output]
Reverse data transmission phase:
The printer requests the host computer to read the data after the Ptr Clk signal
goes HIGH to LOW. After reading the data, the host computer notifies the printer of
completion of data receiving by making the Host Busy signal go LOW to HIGH.
Ptr Busy [Output]
Reverse data transmission phase:
Used for bit 3 and bit 7 of the transmission data.
Ack Data Req [Output]
• Reverse data transmission phase:
Used for bit 2 and bit 6 of the transmission data.
• Negotiation phase:
Used for the trigger signal to inform the host computer of the printer conditions
(whether it supports the nibble mode or not, whether the reverse transmission
data is present or not, etc.).
Xflag [Output]
• Reverse data transmission phase:
Used for bit 1 and bit 5 of the transmission data.
• Negotiation phase:
Informs the host computer whether the printer supports the nibble mode or not.
Indicates that the printer supports nibble mode when this signal is LOW,
synchronizing with the leading edge of the Ack Data Req signal.
Host Busy [Input]
• Reverse data transmission phase:
Indicates that the host computer is already receiving data from the printer when
this signal is LOW. After that, when the Ptr Clk signal in the received data goes
HIGH to LOW, this signal synchronizes with the Ptr Clk signal and goes to HIGH.
• Reverse standby phase:
This signal goes LOW to HIGH after the Ptr Clk signal goes HIGH to LOW, and
enters the reverse data transmission phase again.
INIT [Input]
When this signal goes HIGH to LOW, the printer is put in the BUSY status and
reset after INIT goes LOW to HIGH. This signal is normally HIGH and the pulse
width must be at least 0.5 µs at the printer side.
DataAvail [Output]
• Reverse data transmission phase:
Used for bit 0 and bit 4 of the transmission data.
• Negotiation phase:
Informs the host computer whether there is reverse transmission data or not.
Synchronizes with the falling edge of the LOW pulse of the Ack Data Req signal
which is the timing indicating that there is reverse transmission data.
1284 Active [Input]
This signal confirms whether the printer is a 1284-compatible device when this
signal is HIGH and the Host Busy signal is LOW. It goes HIGH to LOW with the
termination phase.
2-15
Part 2: Product Specifications
BJC-5000
ECP Mode
Host Clk [Input]
This signal handshakes with the PeriphAck (BUSY) signal when data is transferred
from the host computer to the printer. When this signal goes HIGH to LOW, it
means that the data is output on the data buses (Data 1 to Data 8). The signal
goes LOW to HIGH in response to the leading edge of the PeriphAck (BUSY) signal.
Reverse data transmission phase:
This signal remains HIGH.
Data 1 to Data 8 [Input/Output]
This signal is used as an input signal when data is transferred from the host
computer to the printer.
Reverse data transmission phase:
This signal is used as an output signal and the printer outputs data to the host
computer using these data buses.
Periph Clk [Output]
This signal remains HIGH when data is transferred from the host computer to the
printer.
Reverse data transmission phase:
This signal goes HIGH to LOW to indicate that data is output to the host computer.
The signal goes LOW to HIGH in response to the leading edge of HIGH pulse of the
HostAck (AUTO FEED XT) signal of the host computer.
Periph Ack [Output]
This signal goes HIGH to LOW when the printer is ready to receive data from the
host computer while transferring the data from the host computer to the printer. It
goes LOW to HIGH when the printer receives data from the host computer.
Reverse data transmission phase:
Indicates whether the data sent from the printer to the data bus is a command or
data. (LOW: Command, HIGH: Data)
Ack Reverse [Output]
This signal remains HIGH when data is transferred from the host computer to the
printer.
Reverse data transmission phase:
This signal remains LOW.
The Reverse Req (INIT) signal is a switching request from the host computer which
goes HIGH to LOW to request a switch from the forward data transmission phase to
the reverse data transmission phase. In response to the falling edge of the Reverse
Req signal, Ack Reverse signal goes HIGH to LOW to indicate that the switching
request has been accepted.
When the switching from the reverse data transmission phase to the forward data
transmission phase takes place, Ack Reverse signal goes LOW to HIGH to indicate
that the switching request has been accepted, in response to the leading edge of the
Reverse Req (INIT) signal which is a switching request from the host computer.
X flag [Output]
This signal remains HIGH in the ECP mode.
Host Ack [Input]
This signal goes from LOW to HIGH when data is transferred from the host
computer to the printer.
Reverse data transmission phase:
This signal handshakes with the Periph Clk (ACKNLG) signal. When the host
computer is ready to receive data from the printer, this signal goes HIGH to LOW.
After the data is received, the signal goes LOW to HIGH.
2-16
Part 2: Product Specifications
BJC-5000
Reverse Req [Input]
This signal goes HIGH to LOW to perform a recovery process (data re-transmission)
during data transmission from the host computer to the printer. (Win 95 LPT. VXD
does not perform a recovery process.) In response to the falling edge of the Ack
Reverse (PE) signal, this signal goes LOW to HIGH. When switching from the idle
state of the forward data transmission phase to the reverse data transmission
phase, this signal goes HIGH to LOW (during data transmission from the printer to
the host computer).
Periph Req [Output]
If a reverse data transmission is requested by the printer during forward data
transmission, this signal goes HIGH to LOW. When the host computer switches
from forward data transmission to reverse data transmission, this signal goes LOW
to HIGH together with the Ack Reverse (PE) signal, in response to the falling edge of
the Reverse Req (INIT) signal which is a switching request from the host computer.
1284 Active [Input]
This signal goes LOW to HIGH when the negotiation phase starts. It remains HIGH
during the ECP mode to indicate that the operation is performed in the bidirectional mode. To quit ECP, this signal goes HIGH to LOW to enter the
termination phase.
9) Timing
DATA 1 to 8
BUSY
STROBE
300ns
300ns
ACK
750ns-500µs
2.5µs
Figure 2-10 Timing Chart (Compatible Mode)
2-17
Part 2: Product Specifications
BJC-5000
1284 Active
Ack Data Req
Data (1 to 8)
Bit2
0000 0000
Bit6
Unknown
Host Busy
Host Clk
Ptr Clk
Ptr Busy
Printer Busy Status
Data Avail
Printer ∅ Host
Bit3
Bit7
Bit0
Bit4
Bit1
Bit5
Data
Xflag
Nibble mode
supported
TP
TP
TP
Figure 2-11 Timing Chart (Nibble Mode)
1284 Active
Ack Reverse
Data (1 ~ 8)
0001 0000
Host Ack
Byte0
Byte1
nCmd
nCmd
Host Clk
Periph Clk
Periph Ack
Periph Req
Xflag
ECP mode supported
TP
TP
TP
TP
TP: Min. setting
Figure 2-12 Timing Chart (ECP Mode)
2-18
Part 2: Product Specifications
BJC-5000
1284 Active
nAck Reverse
Data(1~8)
Byte0
Byte1
nCmd
nCmd
Host Ack
Host Clk
Periph Clk
Periph Ack
nPeriph Request
XFlag
nPeripheralRequest
ECP Mode Supported
nReverseRequest
Figure 2-13 Timing Chart (ECP Mode/Reverse Mode)
2-19
Part 2: Product Specifications
BJC-5000
This page intentionally left blank
2-20
Part 3
OPERATING
INSTRUCTIONS
Page
3- 1
3- 1
3- 2
3- 3
3- 9
3 -10
3 -11
3 -12
3 -13
3 -13
3 -13
3 -14
3 -14
3 -16
3 -17
3 -18
3 -20
1. PRINTER SETUP
1.1 Unpacking and Inspection
1.2 Site Selection
1.3 Setup Procedure
1.4 Turning the Printer On/Off
1.5 Paper Settings
1.6 Banner Print
1.7 Names of Parts and Their Functions
2. TRANSPORTING THE PRINTER
2.1 Carrying the Printer
2.2 Transporting the Printer
3. PRINTER SERVICING FUNCTION
3.1 Error Indications
3.2 Cleaning the BJ Cartridge
3.3 Self-Test Printout
3.4 Service Mode
3.5 Service Mode Print Sample
Part 3: Operating Instructions
BJC-5000
1. PRINTER SETUP
1.1 Unpacking and Inspection
After unpacking the printer, make sure the items below are included.
BJ Cartridge
User’s Manual
Printer Driver, etc.
Packing
BJ Cartridge
Packing
BJ Cartridge Container
Packing
Packing
Box
Packing
Tape
Tape
Tape
Tape
Figure 3-1 Unpacking
3-1
Part 3: Operating Instructions
BJC-5000
1.2 Site Selection
Set up the printer in a place with enough room for easy operation. The dimensions of
the printer when it is set up are shown below.
For banner printing, leave a space about the size of an A4-size paper between the edge
of the desk and the printer. Also, leave enough space at the back of the printer to set
the banner paper.
304 mm
663 mm
498 mm
Figure 3-2 Printer Site Selection Dimensions
NOTE
· Operate the printer under the following environmental conditions:
Ambient temperature: 5 °C to 35 °C
Relative humidity:
10% to 90% (no condensation)
· Do not place the printer in direct sunlight.
· Do not set up the printer in a place where the temperature changes
suddenly, such as near air conditioners.
· Do not leave the printer in a place where the temperature goes up
rapidly, such as inside a car.
· Do not expose the printer to dust and sea breeze which carries salt.
· Do not set up the printer near electrical products that contain a magnet
or generate a magnetic field.
· Set up the printer on a sturdy, level surface.
· Do not set up the printer in a place subject to vibration.
3-2
Part 3: Operating Instructions
BJC-5000
1.3 Setup Procedure
Use the following procedure to set up the printer.
1.3.1 Connecting the interface cable
1) Make sure both the printer and the computer are turned off.
2) Connect one end of the interface cable to the parallel interface connector on the
back of the printer.
After connecting the cable, fasten the locking clips to secure it.
3) Connect and fix the other end of the interface cable to the interface connector on
the computer.
1
2
Figure 3-3 Connecting the Interface Cable
1.3.2 Connecting the AC power cord
Plug the AC power cord into the AC power jack on the printer. (The AC adapter is
installed in the printer at the factory prior to shipment.)
Figure 3-4 Connecting the AC Power Cord
3-3
Part 3: Operating Instructions
BJC-5000
1.3.3 Turning on the printer
Before turning on the printer, first turn on the computer and other peripheral
equipment (if any). Make sure the AC power cord is plugged in properly, and then
press the POWER button to turn on the printer. When the printer is turned on, it runs
the initializing operations and the carriage moves to the cartridge replacement
position (printer center). At this time, the indicator blinks in green to indicate that the
printer is ready for the BJ cartridge installation.
1.3.4 Installing the BJ cartridge
Four types of cartridges can be installed in the printer: Black BJ Cartridges (BC-23
and BC-20 [reference]), Color BJ Cartridge (BC-21e), and Photo BJ Cartridge (BC-22e
Photo).
See "Part 2: 1.4 Dual Cartridge System" (page 2-5) for the combinations of cartridges
which can be installed on both sides of the carriage.
1) Removing the BJ cartridge protectors
Take out the BJ cartridge from its package and remove the head cap and tape on the
nozzles as shown in the figure.
1
2
Color BJ Cartridge (BC-21e)
Black BJ Cartridge
(BC-23/BC-20 [reference])
Cap
Tape
Photo BJ Cartridge (BC-22e Photo)
Figure 3-5 Removing the BJ Cartridge Protectors
CAUTION
Do not reuse the protective head cap and tape. Any foreign substance on
the cap or tape could mix with the ink and cause printer trouble.
Carefully peel off the protective tape on the printer head without touching
the head. If the head is damaged or if foreign substances stick to the
head, printing errors could occur.
Do not shake the BJ cartridge after removing the head cap and protective
tape. Shaking the cartridge will cause the ink to splatter.
3-4
Part 3: Operating Instructions
BJC-5000
Figure 3-6 BJ Cartridge Handling Precautions
2) Installing the BJ cartridge
Open the front cover of the printer and flip up the cartridge lock lever. Insert the BJ
cartridge into the carriage and push down the cartridge lock lever to lock the
cartridge in place. When you close the front cover, the carriage moves to the capping
position.
NOTE
If the BJ cartridge is not installed properly when you close the front cover,
the carriage will not return to the capping position. If the front cover is not
closed properly, the carriage will not return to the home position either.
When the BJ cartridge is installed
on the right side of the carriage
When the BJ cartridge is installed
on the left side of the carriage
Figure 3-7 Installing the BJ Cartridge
3-5
Part 3: Operating Instructions
BJC-5000
3) Replacing the BJ cartridge
Open the front cover of the printer. The carriage moves to the replacement position
(printer center). Flip up the cartridge lock lever and remove the BJ cartridge. Install
another cartridge using the procedure in the previous section 2). Store the BJ
cartridge (Color, Black, and Photo) removed from the printer in the supplied BJ
cartridge container.
CAUTION
If the printer has been operating for a prolonged period, the aluminum
plate of the BJ cartridge will get very hot. If it is hot, opening the front cover
will activate the protective function. The beeper will sound five times and
the carriage will not move the cartridge replacement position. Wait a few
minutes before attempting to replace the BJ cartridge. The carriage will
not move to the replacement position even if you open the front cover
during an ongoing printing operation or error occurrence.
3-6
Part 3: Operating Instructions
BJC-5000
1.3.5 Replacing the ink cartridge
When a color BJ cartridge is used, the ink cartridge must be replaced. Use the
following procedure to replace the ink cartridge.
1) When to replace the ink cartridge
When the ink runs out or more than 6 months have elapsed since the cartridge was
removed from the package, or if the print quality does not improve even after
cleaning the head five times or more, replace the ink cartridge with a new one. Since
the three color inks are integrated, the entire color ink cartridge must be replaced
when one color ink runs out.
If the print quality does not improve following replacement of the ink cartridge and
after cleaning the head five times or more, replace the color BJ cartridge.
2) Removing an ink cartridge
Open the front cover to move the carriage to the cartridge replacement position. Flip
up the cartridge lock lever as described in 1.3.4-3), “Replacing the BJ cartridge” (page 36). Then, pull out the upper portion of the ink cartridge to be replaced to remove it
as shown in the figure below. There will be ink on and around the ink outlets of the
ink cartridge. Remove the ink cartridge carefully to avoid smears on hand and
machine.
1
2
Figure 3-8 Removing the Ink Cartridge
3) Installing an ink cartridge
Take out the new ink cartridge (option) from its package and remove the cap
covering the ink outlets as shown in the figure below. Install the ink cartridge by
following the removal procedure in reverse. After installing the ink cartridge, close
the front cover to return the carriage to the capping position.
Cap
Figure 3-9 Removing the Ink Cartridge Cap
3-7
Part 3: Operating Instructions
BJC-5000
1.3.6 BJ cartridge container
A BJ cartridge container for storing the BJ cartridge is supplied with the printer. Be
sure to store a BJ cartridge in this container after it is removed from the printer. The
container can store any one of the black BJ cartridges (BC-23 and BC-20 [reference]),
color BJ cartridge (BC-21e) and photo BJ cartridge (BC-22e Photo).
NOTE
· Store the color BJ cartridge (BC-21e) without removing the black and
color ink cartridges inside it.
· Do not shake or drop the BJ cartridge container. Ink could leak out.
Open
Close
Push
Storing the Color BJ Cartridge
Storing the Black or Photo BJ Cartridge
Figure 3-10 BJ Cartridge Container
3-8
Part 3: Operating Instructions
BJC-5000
1.4 Turning the Printer On/Off
1.4.1 Turning the printer on
With the printer plugged in to a power source, press the POWER button to turn on the
printer. When the printer turns on, it starts the initializing operation.
If a BJ cartridge is not installed, the indicator blinks in green to indicate that the
printer is ready to have the BJ cartridge installed and the carriage will move to the
cartridge replacement position. If a BJ cartridge is already installed, the indicator will
light in green to indicate that the printer is in standby status.
When the printer is turned on after more than 72 hours have passed since the last
head cleaning (the first head cleaning is performed 24 hours after a color BJ cartridge
is installed), it automatically carries out head cleaning. The indicator blinks in green
while head cleaning is performed.
1.4.2 Turning the printer off
Press the POWER button to turn off the printer.
When the printer is turned off, it executes a power-off sequence operation to cap the
nozzles of the BJ cartridge for their protection and to prevent ink leakage. The
indicator blinks in green to indicate that the power-off sequence is under progress.
When the power-off sequence is complete, the indicator goes out. Make sure the
indicator is off first before unplugging the AC power cord.
CAUTION
Never turn off the printer by unplugging the AC power cord before
pressing the POWER button. This will cause the printer to turn off before it
can cap the BJ cartridge and as a result the ink will leak out or dry out
and clog the nozzles.
If the AC power cord has been unplugged to turn off the printer, plug in the AC power
cord, press the POWER button to turn on the printer, and then turn it off again.
If the POWER button is pressed while the head is being cleaned, the indicator continues
blinking in green until the head cleaning is completed. After cleaning is completed,
the BJ cartridge is capped and the printer turns off. Any error occurring after the
power-off sequence starts is ignored and the printer is turned off.
Figure 3-11 Caution! Do not unplug the AC power cord
without pressing the POWER button first
3-9
Part 3: Operating Instructions
BJC-5000
1.5 Paper Settings
To achieve optimal print quality according to the paper to be used, use either automatic
feeding using the sheet feeder or manual feeding by feeding paper from manual feeding
slot at the back of the printer. This printer has no mechanical paper selection lever
and paper-pitch adjustment lever. If the paper meets the required specifications, it can
be fed in accordance with the paper thickness without carriage position adjustment
and so on.
Table 3-1 Printer Paper Setting
Media
Size
Feed Method
Sheet Feeder
Loading
Capacity
Plain paper
Weight 64 to 105 g/m2
A3/A4/A5/LTR/LGL
Auto/Manual
Max. 13 mm
Bubble Jet Paper
LC-301
A3/A4/LTR/LGL
Auto/Manual
Max. 13 mm
High Resolution
HR-101
A3/A4/LTR
Auto/Manual
Glossy photo paper
GP-201
A4/LTR/A4+/LTR+
Auto/Manual
Max. 100
sheets
1 sheet
High gloss film
HG-201
A3/A4/LTR
Manual
OHP film
CF-102
A4/LTR
Auto/Manual
Back print film
BF-102
A4/LTR
Auto/Manual
Max. 10
sheets
Fabric sheet
FS-101
Auto/Manual
1 sheet
Envelopes
COM#10
Auto/Manual
Max.15
sheets
Auto/Manual
Manual
Max. 15
sheets
--
Manual
--
Vertical 241 x
Horizontal 356 mm
Vertical 241.3 x
Horizontal 105 mm
Vertical 220 x
Horizontal 110 mm
A4/LTR
DL-size
Banner paper
BP-101
Thick paper
Weight 106 to 550 g/m
(Thickness: Max. 0.8 mm)
2
Vertical 210 to 420 x
Horizontal 150 to 297 mm
✽ A3-size paper can be loaded only through the manual feeding slot.
✽ Banner paper can be loaded for 2 to 6 sheets.
3-10
-Max. 30
sheets
Part 3: Operating Instructions
BJC-5000
1.6 Banner Print
When printing on banner paper, after cutting the paper to the appropriate length (2-6
sheets) set the paper to move in a direct path though the printer using the manual
feed slot on the printer rear side, not the ASF.
Each top margin for banner printing is set to 0 mm at the start of printing. To avoid
printing on the platen, however, printing will start 3 mm from the initial top margin.
Set an extra sheet at the end in case the bottom edge is not printed on the last page.
Banner printing uses a large quantity of ink. To avoid ink run out in the middle of
printing, it is recommended to use a new ink cartridge right from the start of banner
printing.
Banner Paper
Output Tray
Figure 3-12 Banner Print
3-11
Part 3: Operating Instructions
BJC-5000
1.7 Names of Parts and Their Functions
The names of the printer parts and their functions are described below.
Paper Support
Supports a stack of paper loaded in the cut sheet
feeder. Pull it out to support the paper in accordance
with the paper size.
Cut Sheet Feeder
Holds a stack of paper. The number of sheets to
be set varies depending on the thickness and type
of the paper.
Paper Guide
Set the paper guide flush against the left edge of the
cut sheets in the cut sheet feeder so that the paper
can be fed straight.
Control Panel
See the figure below.
Front Cover
Open the front cover to replace the BJ cartridge and
ink cartridge, or remove jammed paper.
Output Tray
Extension
Guide
Paper Output Tray
The printed sheets are output to this tray. To receive
a long printed paper, pull out the out put tray
extension guide before starting the printing operation.
The paper delivery flaps stand up automatically
when the paper output tray is pulled out.
Manual Feeding Slot
Insert paper into this slot to feed the paper manually.
Parallel Interface Connector
Connect the interface cable here.
Control Panel
POWER Button
Turns the printer on or off.
Indicator
Indicates the power on and off statuses of the printer.
This indicator lights or blinks in green while the printer
receives data from the host and when it is warming-up.
It lights and blinks in orange when an error occurs.
RESUME button
Press this button to recover from an operator error. Also, press this button
for two seconds or more to start the head cleaning.
Figure 3-13 Names of Parts and Their Functions
3-12
Paper
Delivery
Flap
Part 3: Operating Instructions
BJC-5000
2. TRANSPORTING THE PRINTER
To carry or transport the printer, keep the BJ cartridge installed in the printer or stored
in the BJ cartridge container. This will prevent printing defects caused by ink leakage or
dried out ink on the nozzles of the BJ cartridge.
2.1 Carrying the Printer
Follow the procedure below to move the printer.
1) Press the POWER button to turn off the printer. When the power is turned off, the
indicator goes out.
2) Disconnect the interface cable.
3) Unplug the AC power cord from the AC outlet.
4) Make sure that the BJ cartridge is at the capping position (the right end of the
printer). If the cartridge is not at the capping position, move the carriage to the
capping position by hand. (See “Part 5: 4.2.3 Unlocking the carriage lock” on page 5-6 for
details on the manual capping method.)
CAUTION
Never turn off the printer by unplugging the AC power cord without first
pressing the POWER button. Otherwise, the printer is turned off before it
can cap the BJ cartridge. Also, do not carry a BJ cartridge removed from
the printer by itself. If the BJ cartridge is not capped, the ink may leak or
dry out in the nozzles.
2.2 Transporting the Printer
Follow the procedure below to transport the printer.
1) Disconnect the interface cable and unplug the AC power cord as described in 2.1,
“Carrying the Printer.”
2) Make sure that the carriage is locked at the capping position (the right end of the
printer). If the carriage is not at the capping position, move the carriage to the
capping position by hand (See “Part 5: 4.2.3 Unlocking the carriage lock on page 5-6 for
locking of the carriage.)
3) Repack the printer in its original box and packing materials.
Figure 3-14 Carriage Capping Position
NOTE
If the original packing materials are not available, use a sufficient amount
of shock-absorbent material to pack the printer.
3-13
Part 3: Operating Instructions
BJC-5000
3. PRINTER SERVICING FUNCTION
3.1 Error Indications
This printer notifies errors with the indicator lamp and beeper.
Indicator
POWER button
RESUME button
Figure 3-15 Control Panel
Table 3-2 Error Indications
State
[Errors that can be corrected by a user]
Feed paper error/paper jam error
Left-head recognition error
Right-head recognition error
High head temperature warning
(during head replacement)
Waste ink full warning
[Errors that cannot be corrected by a user]
Home position error
Cleaning error
Sheet feeder error
Temperature sensor error
Waste ink full error
Head temperature error
Sub-heater error
BJ cartridge not found error
EEPROM error
ROM error
RAM error
Indicator
Beeper
Lights in orange
Lights in orange
Lights in orange
Twice
3 times
4 times
Lights in orange
Lights in orange
5 times
6 times
Alternately blinks in green once and orange twice.
Alternately blinks in green once and orange 3 times.
Alternately blinks in green once and orange 4 times.
Alternately blinks in green once and orange 5 times.
Alternately blinks in green once and orange 6 times.
Alternately blinks in green once and orange 7 times.
Alternately blinks in green once and orange 8 times.
Alternately blinks in green once and orange 9 times.
Alternately blinks in green once and orange 10 times.
Alternately blinks in green once and orange 11 times.
Alternately blinks in green once and orange 12 times.
7 times
7 times
7 times
7 times
7 times
7 times
7 times
7 times
7 times
7 times
7 times
3-14
Part 3: Operating Instructions
BJC-5000
The errors listed in Table 3-2 are described below.
Errors that can be corrected by a user
1) Feed paper error
The paper cannot be fed properly even by the paper feed operation.
Corrective action: Load the paper and press the RESUME button.
2) Paper jam error
The paper cannot be ejected even by the paper eject operation.
Corrective action: Remove the paper and press the RESUME button.
3) Left-head recognition error
Left side BJ cartridge failure or incompatible BJ cartridge.
Corrective action: Install the designated BJ cartridge.
4) Right-head recognition error
Right side BJ cartridge failure or incompatible BJ cartridge.
Corrective action: Install the designated BJ cartridge.
5) High head temperature warning (during head replacement)
The head temperature is found to be too high when BJ cartridge replacement is
attempted. (At this time, the carriage will not move to the replacement position.)
Corrective action: Leave the printer to cool down for a while and then press the
RESUME button. Or, close the front cover once and then open it again.
6) Waste ink full warning
The total waste ink amount recorded by the EEPROM is approaching the specified
limit.
Errors that cannot be corrected by a user
Corrective action: Press the POWER button and turn off the printer.
7) Home position error
The home position of the carriage cannot be detected.
8) Cleaning error
The head cleaning or capping detection at the capping position is irregular.
9) Sheet feeder error
The initial position of the pick-up roller cannot be detected.
10) Temperature sensor error
The reading of the temperature sensor (TH1) on the logic board is irregular.
11) Waste ink full error
The total waste ink amount recorded by the EEPROM has exceeded the specified
limit.
12) Head temperature error
The temperature in the BJ cartridge has exceeded the specified limit.
13) Sub-heater error
The sub-heater in the BJ cartridge is not operating properly.
14) BJ cartridge not found error
The printer cannot detect the BJ cartridge. Only the BJ cartridge replacement
operation is detected.
15) EEPROM error
The EEPROM check has recognized some kind of irregularity.
16) ROM error
The ROM check fails when the AC power cord is plugged in (during the initializing
operation). (At this time, the indicator may not light to indicate the error.)
3-15
Part 3: Operating Instructions
BJC-5000
17) RAM error
The RAM check fails when the AC power cord is plugged in (during the initializing
operation). (At this time, the indicator may not light to indicate the error.)
3.2 Cleaning the BJ Cartridge
When a print quality problem such as blurred or white lines on the printout occurs,
execute a self-test printout to check whether the nozzles on the BJ head are clogged.
If they are clogged, use the following procedure to clean the BJ cartridge to recover the
clogged nozzles. (See 3.3, “Self-Test Printout” on page 3-17 for the self-test printout
procedure.)
1) Turn on the printer. Press and hold the RESUME button for 2 seconds or more.
The cleaning starts. (The indicator blinks in green during cleaning.)
2) When the cleaning is completed, the indicator stops blinking and lights in green.
(The cleaning time varies depending on the type and the number of BJ cartridges,
and takes approximately 35 to 75 seconds.) After the cleaning, execute a self-test
printout again to make sure that the nozzles on the BJ head are cleaned.
The printer automatically executes the cleaning operation at the following times:
1) When the printer is turned on by pressing the POWER button for the first time after
connecting the AC power cord.
2) After a BJ cartridge or ink cartridge is replaced.
3) When the printer is turned on after more than 72 hours have passed since the
head cleaning was performed last.
4) When the printer starts printing after more than 72 hours have passed since the
head cleaning was performed last.
5) After printing a prescribed number of dots when the cleaning operation is not been
executed during this time.
6) When the cartridge is left at the cartridge replacement position for more than 10
minutes.
7) When the printer is turned on while the nozzles of the BJ cartridge are not capped.
8) After more than 24 hours have passed since the color BJ cartridge or photo BJ
cartridge was replaced.
3-16
Part 3: Operating Instructions
BJC-5000
3.3 Self-Test Printout
This printer provides a self-test printout function which can be executed without
connecting the printer to a computer.
After turning on the printer, press and hold down the POWER button. When the beeper
sounds once, release the POWER button. The self-test printout will start. To end the
self-test printout function, press either the RESUME button or the POWER button to turn
off the printer. The printing stops and the printed paper is ejected.
If you continue to hold down the POWER button until the beeper sounds twice when you
turn on the printer, the self-test printout function will not be executed and the printer
starts in the normal operation mode.
The self-test printout prints the following information on 1 page.
· ROM version
· Total number of pages passed
· Nozzle check pattern
After printing the above information, the printer returns to normal printing standby
status.
Use A4/LTR-size paper for the self-test printouts. The self-test printout
function requires the A4/LTR-size paper width. If you use narrower
paper, ink will be smeared on the platen.
NOTE
Control ROM Version No.
Ver X.XX
XXXXXXXX
Total number of pages passed
Printed with the first nozzle.
Printed with the first nozzle.
Printed with
the right-side
cartridge
128
Yellow 24 nozzles
Magenta 24 nozzles
Cyan
24 nozzles
64 nozzles
Black
24
24
24
64
Printed with the 128th nozzle.
Printed with the 136th nozzle.
Printed with the left-side cartridge
Black BJ Cartridge
Color/Photo BJ Cartridge
Figure 3-16 Self-Test Printout (Sample)
3-17
Part 3: Operating Instructions
BJC-5000
3.4 Service Mode
The printer starts the service mode when the control buttons are pressed. To avoid
data loss by misoperation, use the service mode only when necessary.
Use the following procedure to start the service mode.
1) Press and hold down the RESUME button, and then press the POWER button. The
indicator starts blinking in green.
2) While the indicator is blinking, press the RESUME button twice. After the initializing
operation, the beeper sounds once to indicate that the service mode has started.
3) After the indicator stops blinking and lights in green, press the RESUME button for the
specified number of times depending on the function you wish to perform (see Table
3-3 Service Mode below). (Every time you press the RESUME button, the beeper
sounds once. The indicator lights in green and orange alternately.)
4) Press the POWER button to execute the specified function. (Excluding the First Time
Flag ON/OFF function.)
Table 3-3 Service Mode
Function
No. of times
RESUME is
pressed
Indicator
Remarks
(Enters the normal
operation mode.)
0 times
(RESUME is
not pressed.)
Lights in green
Beeper sounds twice and printer enters
the normal operation mode.
Ripple pattern print
Once
Lights in orange
Continuous printing in A4-size paper
width. Stops printing when the printer is
turned off.
Service information
print
Twice
Lights in green
After printing the pattern, the printer is
automatically turned off.
Auto alignment
sensor calibration
3 times
Lights in orange
After printing the pattern, the printer is
automatically turned off. (Black BJ
cartridge must be installed.)
Waste ink counter
data clear
4 times
Lights in green
After executing the function, the printer is
automatically turned off.
Waste ink counter
setting 25%
5 times
Lights in orange
After executing the function, the printer is
automatically turned off.
Waste ink counter
setting 50%
6 times
Lights in green
After executing the function, the printer is
automatically turned off.
Waste ink counter
setting 75%
7 times
Lights in orange
After executing the function, the printer is
automatically turned off.
First Time Flag
ON/OFF
8 times
Lights in green
See the note below.*
Carriage/LF
operation test
9 times
Lights in orange
The test stops when the printer is turned
off.
EEPROM all clear
10 times
Lights in green
After executing the function, the printer is
automatically turned off.
*: When you press the POWER button in step 4 of the above operation, the indicator
lights in orange if the First Time Flag is set to ON, and it lights in green if the flag is
set to OFF. After this operation, when the RESUME button is pressed, the ON and
OFF setting is switched, and then the printer is turned off automatically. If you
press the POWER button, not the RESUME button, the printer will turn off
automatically without changing the ON/OFF setting.
3-18
Part 3: Operating Instructions
BJC-5000
CAUTION
Do not execute “EEPROM all clear” function unnecessarily. The EEPROM
stores data such as the various settings, total number of pages passed,
number of times the BJ cartridge was replaced, and total waste ink
amount. Once the EEPROM is cleared, all the data will be lost and cannot
be reset excepting the waste ink counter. Execute the “EEPROM all clear”
function only when it is necessary and you are absolutely sure.
After executing the “EEPROM all clear” function, always execute the “Auto
alignment sensor calibration” function. Unless you execute this function,
an EEPROM error will occur when the printer is turned on.
Also, after executing the “EEPROM all clear” function, check the waste ink
amount and either replace the waste ink absorber or set the waste ink
counter to 25%, 50%, or 75%, depending on the condition. Check the ink
penetration rate for the entire waste ink absorber as a guideline to
determine the waste ink counter setting value.
3-19
Part 3: Operating Instructions
BJC-5000
3.5 Service Mode Print Sample
3.5.1 Ripple Pattern
Regardless of the BJ cartridge installed, the same pattern is printed repeatedly. When
you press the POWER button, the printer finishes printing. When you press the
RESUME button, the printer stops printing temporarily. To resume printing, press the
RESUME button again.
Figure 3-17 Ripple Pattern Sample
3.5.2 Service Information Printing
Prints the nozzle check pattern and printer setting conditions/operating status. The
nozzle check pattern on the left is printed with the BJ cartridge installed on the right
side of the carriage, and the pattern on the right is printed with the BJ cartridge
installed on the left side of the carriage.
Figure 3-18 Service Information Printing Sample
3-20
Part 4
TECHNICAL
REFERENCE
Page
4- 1
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4- 3
4- 4
4- 6
4- 7
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4 - 11
4 - 11
4 - 13
4 - 14
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4 - 15
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4 - 41
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4 - 41
4 - 42
4 - 42
4 - 42
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4 - 43
1. OVERVIEW
1.1 Printer Block Diagram
1.2 Initialization Sequence Flowchart
1.3 Print Signal Flow
1.4 Print Drive
1.5 Power-Off Sequence Flowchart
2. FIRMWARE
2.1 Interface
2.2 Printing System
2.3 Printing Modes
2.4 Cartridge Automatic Adjustment Function
2.5 Data Separation Function
2.6 Ink Smear Control
2.7 Head Overheating Protection Control
2.8 Auto Power-Off
3. PRINTER MECHANICAL SYSTEM
3.1 Overview
3.2 BJ Cartridge
3.3 Purge Unit
3.4 Carriage
3.5 Paper Feed/Cut Sheet Feeder
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
4.2 Logic Section
5. SENSOR FUNCTIONS
5.1 Pick-Up Roller Sensor
5.2 Paper End Sensor
5.3 Home Position Sensor
5.4 Purge Sensor
5.5 Cover Open Sensor
5.6 Printer Temperature Sensor
5.7 Head Temperature Sensor
5.8 Auto-Alignment Sensor
5.9 Waste Ink Amount Detection
Part 4: Technical Reference
BJC-5000
1. OVERVIEW
1.1 Printer Block Diagram
BJ Cartridge LEFT
Home Position Sensor
BJ Cartridge RIGHT
Auto Alignment Sensor
Carriage
Paper Feed Motor
Purge Sensor
Carriage Motor
Logic Board
J6
J7
Paper Feed
Motor Driver
J4
Vcc(+5VDC)
J1
J2
Carriage Motor
Driver
MPU & Printer Controller
J5
J3
VH(+24.0VDC)
VM(+24.0VDC)
Control ROM
Figure 4-1 Printer Block Diagram
4-1
DRAM
EEPROM
I/F
Part 4: Technical Reference
BJC-5000
1.2 Initialization Sequence Flowchart
The flowchart below shows the initialization process from when the printer is turned on
to when it goes online.
Connect AC plug.
(Hardware power-on)
• Connect the AC plug to the AC outlet.
Software initialization
• MPU and printer controller initialization
• ROM/RAM/EEPROM check
Press the POWER button.
(Softpower-on)
• Turn on the printer.
Indicator blinks
(green).
Cartridge detection
• Drives the paper feed motor.
• Capping operation
Purge unit
initialization
Temperature sensor
(TH1) check
• The temperature sensor on the logic board
checks the machine temperature.
Carriage position
control
• Drives the carriage motor.
• Moves the carriage to the home position.
Paper feed
motor initialization
• Drives the paper feed motor drives.
• Sets the pickup roller and paper lifting plate to the
initial position.
Automatic cleaning
operation
Waste ink check
• When the automatic cleaning is not performed,
operates the maintenance jet.
• Checks the waste ink counter in EEPROM.
Indicator lights
(green).
Figure 4-2 Initialization Sequence Flowchart
4-2
Part 4: Technical Reference
BJC-5000
1.3 Print Signal Flow
1.3.1 Data between host computer and printer
Conventionally, control functions were provided by a printer's firmware. For this
printer, however, these control functions are processed by the printer driver on the
computer.
Conventional printers receive the image data in the raster direction (horizontal
direction data) which is created on the printer driver. The printer converts the raster
direction image data it receives into column data (vertical direction data) and then
executes printing.
The printer driver on the host computer handles all processes until column data
creation and their the printer receives this column data and prints it. Thus, high
speed printing is realized because the printer does not need to convert the raster data
into column data before printing.
1.3.2 Print Signal Flow in the Printer
The print signal flow from when the printer receives the print data to when printing is
executed is described below.
a) The printing information (column data matching with the nozzle arrangement of
the built-in printhead) including control signals output by the host computer is
loaded through the parallel interface into the MPU & printer controller on the logic
board. The printing information is separated into control commands and print
data based on the data stored in the control ROM. The control commands are
processed in the MPU & printer controller. The print data is stored in the DRAM
print buffer.
b) The MPU & printer controller outputs the print data to the bubble jet head in the
form of print signals. In the bubble jet head, the print data is converted from serial
signals to parallel print data for each printed line. Printing is performed as the
MPU & printer controller is controlled by the print control signals.
c) The MPU & printer controller monitors the status of the bubble jet head and
printer and uses the control ROM and motor drivers to manage all printing driver
controls.
Host
Computer
DRAM
a
a
b
b
MPU &
Printer Controller
Print Buffer
Logic Board
a
Control ROM
BJ Head
c
c
c
: Print signal
: Control signal
Figure 4-3 Print Signal Flow
4-3
Motor Drivers
Sensors
Part 4: Technical Reference
BJC-5000
1.4 Print Drive
To discharge ink from the head for printing, the printer outputs control signals from
the printer controller to the BJ head.
The control signals consists of the drive control signal for discharging ink from the
head’s nozzles and the temperature control signal for adjusting the head’s temperature
so that the ink discharge is uniform.
To achieve best printing results, both these control signals are optimized by the MPU &
printer controller and sent from the carriage ribbon cable’s signal contacts to the BJ
head.
The drive frequency varies depending on the printing mode and installed BJ cartridge.
1.4.1 Print drive control
a) Black BJ cartridge drive control
The black BJ cartridge drive control is performed by dividing the head’s 128 nozzles
into 8 blocks (16 nozzles per block). These blocks are further divided into odd and
even blocks (8 nozzles per odd/even block). Ink is simultaneously discharged either
from all odd block nozzles or from all even block nozzles. Control signals for the odd
block nozzles are block enable signals 1, 2, and 3 (BENB 1, 2, 3). Control signals for
the even block nozzles are the even/odd enable signals (Even/Odd ENB).
Heat enable 0 and 1 (HENB 0, 1), which are the heater drive control signals for
discharging the ink, are comprised of a pre-pulse and main pulse. To achieve
optimum ink discharge constantly, internal conditions such as the head’s rank,
printer temperature, and head temperature are monitored and the heater drive pulse
width is varied before the pulse is output. Furthermore, the print drive signal from
the printer controller is transferred to the shift resistor in the BJ head according to
the HLATCH timing. When the print drive signal (HDATA) is latched and the print
control and heater drive control signals are output together, the heater for the
corresponding nozzles is driven and ink is discharged.
BE2
BE3
BE4
BE5
BE6
BE7
BE8
O
E
O
E
O
E
O
E
O
E
O
E
O
E
O
E
A
B
A
A
B
A
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
B
A
B
B
A
B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
:
:
BE1
BE1 to BE8: Block Enable 1 to 8
E: Even Enable
O: Odd Enable
A: Heat Enable 0
B: Heat Enable 1
Figure 4-4 Printing Sequence (Black BJ Cartridge/Standard Mode)
b) Color BJ cartridge (multi-drop) drive control
The printhead of the multi-drop type color BJ cartridge has 136 nozzles and each
nozzle has two heater boards at the front and back. The multi-drop drive is
performed by appropriately using these front and back heaters.
The sequence of ink discharge is as follows. The 136 nozzles in the head are divided
into 8 blocks (16 nozzles per block) and each block is separated into two functional
units (8 nozzles per unit). Ink is sequentially discharged from each unit. The
nozzles for discharging ink are selected by block enable signals (BENB 1, 2, 3) and
4-4
Part 4: Technical Reference
BJC-5000
even/odd enable signals (Even/Odd ENB). The heat enable signals (HENB 0, 1, 2, 3)
are the heat drive control signals for the heater boards.
In the drop modulation mode, the HENB0 signals drive the heater at the back of the
black nozzles; the HENB1 signals drive the heater in the front of the black nozzles;
the HENB2 signals drive the heater in the front of the color nozzles; and the HENB3
signals drive the heater at the back of the color nozzles.
The heat enable signals are comprised of a pre-pulse and main pulse. To achieve
optimum ink discharge constantly, internal conditions such as the head’s rank,
printer temperature, and head temperature are monitored and the heater drive pulse
width is varied before the pulse is output.
154 µs (6.51kHz)
154 µs (6.51kHz)
100 µs (10kHz)
Standard
Graphics
High
HLATCH
HDATA
128 or 136
0
1
2
3
4
Data transfer to shift register
HCLOCK
Odd ENB
Even ENB
1(0)
BENB 0
0(1)
1(0)
0(1)
BENB 1
1(0)
0(1)
BENB 2
1(0)
0(1)
Head driving in high mode (divided into 16)
HENB 0,1,2
HENB 3
1 Block
Odd ENB
Even ENB
BENB 0
BENB 1
1(0)
0(1)
1(0)
1(0)
0(1)
1(0)
BENB 2
0(1)
1(0)
0(1)
1(0)
1(0)
0(1)
Head driving in standard mode (divided into 8)
0(1)
0(1)
Variable Pulse
Width
HENB 0,1,2
Pre-Pulse
Main Pulse
HENB 3
1 Block
The signals HENEB 0, 1, 2, and 3 are driven independently
when the multi-drop type color BJ cartridge is used.
The names of signals for the LEFT and RIGHT BJ cartridges are different.
LEFT BJ cartridge: HENB 0L, 1L, 2L, 3L
RIGHT BJ cartridge: HENB 0R, 1R, 2R, 3R
Figure 4-5 Print Signals
4-5
Part 4: Technical Reference
BJC-5000
1.5 Power-Off Sequence Flowchart
Press the POWER button.
(Soft power-off)
Indicator blinks.
No
Capping?
Yes
Cap off
Detection of heads
Paper output operation
Detection of carriage
in home position
Auto cleaning if needed
Capping
Indicator turns off.
End
Figure 4-6 Power-Off Sequence Flowchart
CAUTION
Never turn off the printer by unplugging the AC power cord or AC adapter
before pressing the POWER button. This will cause the printer to interrupt
the power-off sequence and turn off before it can cap the BJ cartridge
head. If the AC power cord or AC adapter has been unplugged to turn off
the printer, plug it in again, press the POWER button to turn on the printer,
and turn it off. Then, unplug the AC power cord or AC adapter.
4-6
Part 4: Technical Reference
BJC-5000
2. FIRMWARE
2.1 Interface
This printer supports the compatible mode, nibble mode, and ECP mode which are
compliant with the bidirectional Centronics interface standard (IEEE P1284).
The compatible mode is the same as the conventional Centronics interface-compliant
protocol. When the printer operates as a printer, data is transferred in the compatible
mode or ECP mode. The nibble mode is used for transferring status data such as the
device ID and printer status to the host computer during printer operation. To use the
nibble mode or ECP mode, the setting in the host computer must either be the nibble
mode or ECP mode.
2.1.1 Compatible mode
The parallel interface for the compatible mode transfers data in 8-bit blocks. Data is
transferred with the STROBE, BUSY, and ACKNLG handshake signals.
When the printer receives the data (Data 1 to 8) and STROBE signal from the host
computer, the printer controller which is controlling the parallel interface outputs the
BUSY signal and latches the data at the falling edge of the STROBE signal. After the
BUSY signal is output, the printer controller loads the latched data from the DRAM
bus into the receive buffer of the DRAM. After the printer controller finishes writing
data in the receive buffer of the DRAM, it outputs the ACKNLG signal and makes the
BUSY signal LOW. Then, it waits for the next data input from the host computer.
DATA 1 to 8
BUSY
STROBE
300ns
300ns
ACKNLG
750ns-500µs
2.5µs
Figure 4-7 Interface Timing (Compatible Mode)
4-7
Part 4: Technical Reference
BJC-5000
2.1.2 Nibble mode
In the nibble mode, the printer transfers data twice to the host computer in 4-bit
blocks. The data is transferred with the PtrClk signal and HostBusy signal
handshakes.
After the printer confirms the falling edge of the HostBusy signal, it prepares the 8-bit
data, makes the PtrClk signal go from HIGH to LOW, and outputs the lower 4 bits on
the control signal line. After the PtrClk signal goes from HIGH to LOW, the host
computer loads the data and makes the HostBusy signal go from LOW to HIGH. After
the printer confirms the falling edge of the HostBusy signal for the second time, it
outputs the higher 4 bits on the control signal line.
If there is no data to be sent to the host computer after the HostBusy signal goes from
LOW to HIGH, the printer makes the DataAvail signal go from LOW to HIGH and is
put on standby status for the next data transfer. (The falling edge indicates a LOW
and the rising edge indicates a HIGH.)
Max. 35ms
HostBusy
Max. 35ms
PtrClk
Min. 45ms
DataAvail
Bit0
Bit4
Xflag
Bit1
Bit5
AckDataReq
Bit2
Bit6
PtrBusy
Bit3
Bit7
Figure 4-8 Interface Timing (Nibble Mode)
4-8
Part 4: Technical Reference
BJC-5000
2.1.3 ECP mode
In the ECP mode, the printer transfers 8-bit data all at once and therefore it can send
and receive data in high speed. This mode is suitable for sending and receiving large
volumes of data.
When the AckReverse signal goes from HIGH to LOW in response the ReverseReq
signal going from HIGH to LOW, the data bus direction changes from forward data
transfer (which sends data from host computer to printer) to reverse data transfer
(which sends data from printer to host computer).
During the reverse data transfer phase, the printer makes HostAck go from HIGH to
LOW when it detects the rising edge of PeriphClk.
When the host computer is able to receive data from the printer, HostAck goes from
HIGH to LOW; and when it receives data, HostAck goes from LOW to HIGH.
(The falling edge indicates a LOW and the rising edge indicates a HIGH.)
1284 Active
Ack Reverse
Data(1~8)
0001 0000
Host Ack
Byte0
Byte1
nCmd
nCmd
Host Clk
Periph Clk
Periph Ack
Periph Req
Xflag
ECP mode support
TP
TP
TP
TP
TP: Minimum setting
Figure 4-9 Interface Timing (ECP Mode)
4-9
Part 4: Technical Reference
BJC-5000
1284 Active
nAck Reverse
Data(1~8)
Byte0
Byte1
nCmd
nCmd
Host Ack
Host Clk
Periph Clk
Periph Ack
nPeriph Request
XFlag
nPeripheralRequest
ECP Mode Supported
nReverseRequest
Figure 4-10 Timing Chart (ECP Mode/Reverse Mode)
4-10
Part 4: Technical Reference
BJC-5000
2.2 Printing System
Control functions are provided by conventional printers. In this printer, however, these
control functions are mostly processed by the printer driver of the host computer.
With conventional printers, image data in the raster direction (horizontal direction data)
is created on the printer driver and the printer side receives this data. Consequently,
the image data in raster direction received by the printer is converted into column data
(vertical direction data) by the printer and the printing is executed.
The printer driver on the host computer handle all processes until the creation of
column data matching the printhead installed in the printer. Then, the printer receives
this column data and prints it. (The printer reads the printhead ID and automatically
notifies the host computer of the printhead configuration.) Thus, this printer achieves
high speed printing because it does not need to convert raster data into column data
and can print the data as it is.
2.3 Printing Modes
2.3.1 Printing mode
This printer varies the printing method, such as carriage movement and bubble jet
head driving frequency, in accordance with the cartridge installed, the selected
medium, the selected printing mode, the resolution, and the print data in order to
achieve high-quality printing without any bleeding or shifting in the printout.
When color printing is performed using a single pass, the different colors printed at
the same time overlap, often causing the colors to run. By printing with two or more
delayed passes, there is less color bleeding because the color printed immediately
before is relatively stable by the time the next color is printed over it.
When print data is processed internally by the printer, the data is recognized and the
number of ink nozzles to be used by the black ink is automatically changed.
Characters are printed by taking preventive measures for bleeding and white mist
which are generated at the borders because the characteristics of the color and black
inks differ. This process is carried out as follows: During internal processing by the
printer, the borders where the color and black inks meet are identified. Cyan and
black ink are mixed in the printed black portion to suit the distance and density of
the black and color dots.
2.3.2 Photo print mode
The photo print mode can be used to obtain a print quality with rich gradation that
reduces granularity by printing several times on the same dot using the Photo BJ
cartridge which contains a light density ink.
The printer driver divides the pixel data into 4 values (not printed, print 1 dot, print 2
dots, and print 3 dots) enabling each pixel to be printed using up to 4 gradations.
When the color cartridge and photo auto cartridge are installed, high-quality print is
achieved by using 7 types of inks (cyan, magenta, yellow, black, photo cyan, photo
magenta and photo black). In addition, an improved gray color reproduction has been
provided by the use of 2 types of black inks.
2.3.3 Multi-drop print mode
The color cartridge uses drop modulation technology to print large and small dots
efficiently so that the granularity of low density portions can be reduced. The photo
cartridge of this machine prints small dots only.
4-11
Part 4: Technical Reference
BJC-5000
Table 4-1 Printing Modes and Driving Method
Head Combination
Left Right
Print Mode
Media
Standard
BC-23
None
(BC-20)
Plain Paper
Other Paper
BC-23
BC-23
(BC-20) (BC-20)
Plain Paper
Other Paper
BC-21e
None
Plain Paper
Other Paper
BC-21e
BC-21e
Plain Paper
Other Paper
BC-21e
BC-23
(BC-20)
Plain Paper
Other Paper
BC-21e
BC-22e
Plain Paper
Other Paper
Graphics
High
Photo Standard Photo/High
360 x 360 dpi
1 pass
Bi-directional
6.51kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
360 x 360 dpi
1 pass
Bi-directional
6.51kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
360 x 360 dpi
1 pass
Bi-directional
360 x 360 dpi
1 pass
Uni-directional
6.51kHz
N/A
720 x 720 dpi
2 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
720 x 720 dpi
2 pass
Uni-directional
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
6.51kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
360 x 360 dpi
1 pass
Bi-directional
6.51kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
360 x 360 dpi
1 pass
Bi-directional
6.51kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
360 x 360 dpi
1 pass
Bi-directional
6.51kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
6.51kHz
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
720 x 720 dpi
2 pass
Uni-directional
10kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
360 x 360 dpi
1 pass
Uni-directional
6.51kHz
N/A
360 x 360 dpi
1 pass
Uni-directional
360 x 360 dpi
1 pass
Uni-directional
6.51kHz
N/A
360 x 360 dpi
1 pass
Uni-directional
6.51kHz
N/A
360 x 360 dpi
1 pass
Uni-directional
6.51kHz
N/A
4-12
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
720 x 720 dpi
2 pass
Uni-directional
10kHz
1440 x 720 dpi
4 pass
Uni-directional
10kHz
Part 4: Technical Reference
BJC-5000
2.4 Cartridge Automatic Adjustment Function
When the installed printhead is changed, the printer notifies the printer driver of the
new printhead configuration.
The printer driver displays a pop-up message which advises a user to perform the head
alignment before starting the printing. When the maintenance tab on the driver “Align
Printheads” is selected, the printer prints the automatic head alignment pattern and
corrects the print position automatically.
While printing the automatic head alignment pattern, the printer detects run-out of
ink, displacements of the left and right cartridges which could occur due to the dual
cartridge system, and density errors using the auto-alignment sensor on the carriage.
The printer sends the detected information to the printer driver of the host computer.
The printer driver performs an automatic adjustment of the head nozzle alignment and
automatic density correction of the left and right heads based on the information sent
from the printer and controls the printing accordingly. When ink runs out, the
message is displayed on the printer driver.
2.4.1 Automatic correction of head nozzle alignment
The printer driver receives and interprets the information about the correlation
between the print data and head nozzle. With this information, head characteristics
can be corrected by the printer driver. The following adjustments are performed.
a) Alignment of vertical and horizontal directions
When printing is performed with dual cartridges, the auto-alignment sensor detects
the displacement of the dot alignment in the vertical and horizontal directions of
both heads, and the printer driver corrects it.
b) Alignment of printing direction
When bi-directional printing is performed, the print position when the head prints in
the forward direction tends to differ from the print position when the head prints in
the backward direction. This displacement could result in a poor print image. The
printer driver corrects the print position error in the horizontal direction which is
detected by the auto-alignment sensor so that high quality can be maintained, even
during high-speed bi-directional printing.
2.4.2 Automatic density correction of left/right cartridge
When the left and right cartridges are the same, if the auto-alignment sensor of the
printer driver detects a difference in the density during a printing operation between
the left and right cartridges, the printer driver automatically corrects the density
based on the detection result.
If the ink of the right printhead has run out, the printer prints using only the left
printhead.
4-13
Part 4: Technical Reference
BJC-5000
2.5 Data Separation Function
The data separation function is available only when printing is performed using the
dual cartridge system where 2 cartridges are installed on the carriage and the same
cartridge is installed in both heads. This function determines whether the left or right
head is used for printing each pixel. This function efficiently divides the area printed
by the left and right cartridges, and achieves the proper gradation by printing over
several times at the borders between both cartridges where print quality tends to vary.
2.6 Ink Smear Control
Immediately after a printed sheet is ejected from the printer, the ink dries in a natural
state on the paper output tray. If the next printed sheet is ejected before the ink dries
properly, the ink may be smeared. To prevent ink smears, a wait period is applied
during printing so that the ejection of every sheet is delayed to allow more time for the
ink on the preceding sheet to dry.
When a black BJ cartridge (whose printing speed is faster) is used and high duty
printing is performed, the printer automatically determines the high duty printing
position and the time elapsed from the start of printing.
The ink smear control is not performed when a color BJ cartridge is used for printing.
2.7 Head Overheating Protection Control
If the ink runs out and the printing operation is continued, the bubble jet head can
become extremely hot. If the head temperature sensor in the bubble jet head detects a
temperature higher than the designated temperature limit, head overheating control is
executed.
Protection level 1:
This level prevents the user from touching the aluminum plate of the bubble jet head
when the bubble jet head is replaced. This protection function does not allow cartridge
replacement for a set period of time.
Protection level 2:
If a still higher temperature is detected, the carriage is returned to the home position
every time one line is printed and the printer is put in standby state for 3.5 seconds to
control the temperature increase. This control continues for 20 seconds or more.
Protection level 3:
If the temperature continues to increase, a head temperature error occurs. This stops
the printing operation.
2.8 Auto Power-Off
This printer provides an auto power-off function which automatically turns off the
printer when print signals are not sent from the host computer for over a preset idle
period. These settings can be made from the printer driver.
When the auto power-off function is set to “enable,” the printer is turned off if print
data is not sent from the host computer for over a preset idle period. The idle period
settings available are 10, 30, and 60 minutes.
4-14
Part 4: Technical Reference
BJC-5000
3. PRINTER MECHANICAL SYSTEM
3.1 Overview
This section describes the printer’s mechanical components.
BJ Cartridge
Sheet Feeder
Purge Unit
Carriage
Paper Feed Section
Figure 4-11 Mechanical System of Printer
3.1.1 Mechanical components
1) BJ cartridge
A user replaces and installs the BJ cartridges as required. The black and photo BJ
cartridges are integrated and use the same head. The color BJ cartridge has
separate replaceable ink cartridges.
2) Purge section
The purge section helps maintain high-quality printing by capping and wiping the
face of the BJ cartridge. The absorption function recovers the conditions that allow
the ink in the nozzles to be discharged easily.
The purge section consists of the purge unit and wiper unit.
The purge unit is driven by the paper feed motor. It absorbs the ink of the BJ
cartridge and removes the ink in the cap. When the printer is not in use, the purge
unit caps the nozzles of the BJ cartridge for protection.
The wiper unit provides a wiping function to wipe the head face and the
maintenance jet receiving function.
3) Carriage
The carriage is moved horizontally back and forth across the paper by the carriage
belt driven by the carriage motor. The print signals from the logic board are
transmitted to two BJ cartridges installed on the carriage via the carriage cable.
The carriage performs switching control of the paper feed motor (control of the stay
unit’s slide lock lever) to switch the motor’s drive between the paper feed/purge unit
and the sheet feeder.
4-15
Part 4: Technical Reference
BJC-5000
4) Paper feed mechanism and sheet feeder
The built-in sheet feeder is driven by the paper feed motor and each paper sheet
loaded in the sheet feeder is picked up and fed into the paper feed mechanism.
The paper feed mechanism driven by the paper feed motor turns the feed rollers to
feed the paper vertically.
4-16
Part 4: Technical Reference
BJC-5000
3.2 BJ Cartridge
3.2.1 Black BJ cartridge structure
The black BJ cartridge has a 128-nozzle printhead. The printhead and ink cartridge
are assembled in a single cartridge body.
1) Cartridge cover
A plastic cover is attached to the cartridge body to prevent ink from leaking inside
the cartridge.
As the ink is consumed, the pressure inside the cartridge decreases relative to the
atmospheric pressure. This makes it harder for the ink to be supplied to the head.
To prevent this, the cartridge cover is provided with a pressure adjusting hole for
maintaining constant pressure inside the cartridge body.
2) Ink sponge
The sponge is soaked with black ink. It is compressed and stored in the cartridge
body.
3) Cartridge body
The plastic case connects the ink sponge with the bubble jet head unit via the ink
filter.
4) Bubble jet head unit
Ink is discharged through 128 bubble jet nozzles in accordance with the print
signals received through the signal contact.
Cartridge Cover
Ink Sponge
Ink Filter
Label
Pressure Adjusting Hole
Cartridge Body
Aluminum Plate
Joint Pipe
Signal Contact
128 Bubble Jet Nozzles
Faceplate
Bubble Jet Head Unit
Figure 4-12 Black BJ Cartridge Structure
4-17
Part 4: Technical Reference
BJC-5000
3.2.2 Color BJ cartridge structure
The color BJ cartridge is attached to a printhead with 136 nozzles (including 24
nozzles each for yellow, magenta, and cyan inks and 64 nozzles for black ink). The
ink cartridge (one cartridge for black, and one cartridge for yellow, magenta, and cyan
inks) is replaceable by separating it from the printhead.
1) Pressure adjusting plate
As the ink is consumed, the pressure inside the cartridge decreases relative to the
atmospheric pressure. This makes it more difficult for the ink to be supplied to the
head. To prevent this, the BJ cartridge provides an air hole for maintaining
constant pressure inside the cartridge body.
2) Ink sponge
Each ink color (black, cyan, yellow, magenta) is soaked in its own separate sponge.
The cyan, yellow, and magenta sponges are compressed and stored in the same color
ink cartridge body.
3) Ink suppliers
The ink suppliers supply ink from the ink sponges to the joint sections of the
cartridge at a constant pressure.
4) Ink cartridge body
The plastic case connects the ink sponges with the color BJ cartridge via the ink
suppliers.
5) Rubber sheet
The rubber sheet seals the joint sections between the ink cartridge and BJ cartridge.
6) Ink passage section
This is a passage through which ink flows from the ink cartridge to the Bubble Jet
head unit.
7) Bubble jet head unit
The inks of the four colors are supplied separately from the ink cartridges to the 136
bubble jet nozzles. Ink for each color is discharged through the 136 nozzles in
accordance with the print signals received through the signal contacts.
Pressure Adjusting Plates
Cartridge Cover
Rubber Sheets
Ink Filter
Ink Sponges
Cartridge Body
Ink Suppliers
Label
Label
Cartridge Cover
Ink Sponge
Ink Passage Section
Holder
Aluminum Plate
Signal Contact
136 Bubble Jet Nozzles
Faceplate
Bubble Jet Head Unit
Ink Supplier
Label
Ink Cartridge Body
Figure 4-13 Color BJ Cartridge Structure
4-18
Part 4: Technical Reference
BJC-5000
3.2.3 Photo BJ cartridge structure
The photo BJ cartridge is attached to a printhead with 136 nozzles (including 24
nozzles each for yellow, magenta, and cyan inks and 64 nozzles for black ink). The
ink cartridge (one cartridge for black, and one cartridge for yellow, magenta, and cyan
inks) is replaceable by separating it from the printhead.
1) Pressure adjusting plate
As the ink is consumed, the pressure inside the cartridge decreases relative to the
atmospheric pressure. This makes it harder for the ink to be supplied to the head.
To prevent this, the BJ cartridge provides an air hole for maintaining constant
pressure inside the cartridge body.
2) Ink sponge
Each ink color (black, cyan, yellow, magenta) is soaked in its own separate sponge.
The cyan, yellow, and magenta sponges are compressed and stored in the same color
ink cartridge body.
3) Cartridge body
The plastic case connects the ink sponge with the bubble jet head unit via the ink
filter.
4) Ink passage section
This is a passage through which ink flows from the ink cartridge to the head unit.
5) Bubble jet head unit
The inks of the four colors are supplied separately from the ink cartridges to the 136
bubble jet nozzles. Ink for four colors is discharged through the 136 nozzles in
accordance with the print signals received through the signal contacts.
Pressure Adjusting Plate
Ink Sponge
Ink Filter
Ink Sponge
Ink Passage Section
Aluminum Plate
136 Bubble Jet Nozzles
Faceplate
Signal Contact
Bubble Jet Head Unit
Figure 4-14 Photo BJ Cartridge Structure
4-19
Part 4: Technical Reference
BJC-5000
3.2.4 Bubble head unit structure
1) Bubble jet nozzles
The ink held by the ink sponge goes through a mesh-type ink filter and flows to the
bubble jet nozzles via the ink passage of the cartridge body.
When the head-drive current is supplied to the heater board, the ink boils and
produces several ink bubbles. Eventually, only one ink bubble is formed by boiling.
The head-drive current is turned off before an ink droplet leaves the nozzle. The
bubbling, however, continues with the residual heat of the heater and causes ink
droplets to be discharged from the tips of the nozzles.
After an ink droplet is discharged, the nozzle is replenished with more ink from the
ink sponge.
NOTE
The heater board of the printhead holds the heater and its circuits which
are formed on a silicon plate using semiconductor technology. The silicon
plate which contains these electrical circuits is bonded to an aluminum
base. A plastic cover molded to fit the nozzles is also provided.
Signal Circuit
Print Board
Extra-fine Wire
Connecting Section
Protective Bond of Wire
Connecting Section
Silicon Plate
Aluminum Plate
Heater Plate
Bubble Jet Nozzle
Ink passage from ink sponge
1 Turning on the heater
2 While heater is on
Ink Filter
3 Turning off the heater
4 Bubble shrinkage,
ink droplet formation
5 Ink droplet discharge
Joint Pipe
Plastic Cover
Common Ink Chamber
Faceplate (Part of plastic cover)
Figure 4-15 Bubble Jet Nozzles (Partial View)
4-20
Part 4: Technical Reference
BJC-5000
2) Nozzle arrangement
The bubble jet nozzles are placed 1/360 inch apart in a vertical array.
The black BJ cartridge has 128 nozzles. On the color and photo BJ cartridges, the
first 24 nozzles are used for yellow ink, the second 24 nozzles for magenta ink, the
third 24 nozzles for cyan ink, and the remaining 64 nozzles for black ink. The color
and photo BJ cartridges have a total of 136 nozzles.
Black BJ Cartridge
Color BJ Cartridge
Nozzle 1
Nozzle 1
Yellow Nozzles 1 to 24
Magenta Nozzles 25 to 48
Cyan Nozzles 49 to 72
Black Nozzles 73 to 136
Nozzle 136
Nozzle 128
Photo BJ Cartridge
Figure 4-16 Nozzle Arrangement
3) Signal contact (contact pad)
BJ Cartridge
29 28
20
27
26 25 24
21 22 23
19 18 17 16
15
3
11 12 13 14
10
9
4
8 7
6 5
2 1
Figure 4-17 Contact Pad
4-21
Part 4: Technical Reference
BJC-5000
Table 4-2 List of BJ Cartridge Signal Contacts
No.
1, 2
3
4
5, 6
7
8
9
10
11
12
13
14
15
17
27
18
16
19
20
21
22
23
24
25
26
28
29
Signal
VHG
HT0
HT1
HVH
Description
GND for head driver voltage VH
Temperature control heater drive signal
Temperature control heater drive signal
Head drive voltage (ink discharge heater, temperature control
heater, sub-heater driver)
W-HT
OUT
Sub-heater drive signal
INKS1
...
Not used
TOP
IN
Rank resistance detection signal
DIODEA
OUT
Head temperature sensor (diode) anode
ID0
IN
BJ cartridge recognition signal
ID1
IN
BJ cartridge recognition signal
INKS2
IN/OUT BJ cartridge recognition signal
HVss
GND
GND for printhead logic driver voltage HVdd
HENB0
OUT
Heat enable
HENB1
OUT
· Black BJ cartridge: Uses only pin Nos. 15 and 17.
· Color/photo BJ cartridge: Uses all pins.
HENB2
OUT
HENB3
OUT
Even ENB OUT
Heat enable for even-number nozzles
Odd ENB
OUT
Heat enable for odd-number nozzles
BENB1
OUT
Signal used for generating output signal of block enable
decoder
BENB2
OUT
Signal used for generating output signal of block enable
decoder
BENB3
OUT
Signal used for generating output signal of block enable
decoder
HVdd
OUT
IC driver voltage (+5V)
HCLK
OUT
Print data transfer signal
HLATCH
OUT
Timing signal for latching print data of shift resistor
HRES
OUT
Latch reset signal
HDATA
OUT
Print data
DIODEK
IN
Head temperature sensor (diode) cathode
NOTE
Type
GND
IN
IN
OUT
Pin Nos. 1 to 29 are connected to the BJ cartridge (same for left and right
cartridges). Pin Nos. 30 to 32 of the left cartridge are connected to the
home position sensor of the carriage. Pin Nos. 30 to 32 of the right
cartridge are connected to the auto-alignment sensor of the carriage.
4-22
Part 4: Technical Reference
BJC-5000
4) Circuit diagram
HTO
HVH
HTI
TOP
VHG
W-HT
Temperature Control Heater x 2
Rank Resistor
Sub-heater x 2
HENB <0>
<1>
Odd ENB
Even ENB
Heater 1
1
2
1
2
<0>
BENB <1>
<2>
3
4
Block Enable Decoder
8
128-bit Shift
Resistor
128-bit Latch
16
Delay
1
17
16
128
HDATA
128-bit
Tr.
Array
113
114
127
128
HCLOCK
HRES
HLATCH
HVdd
HVss
DIODE A
DIODE K
ID0
ID1
INKS2
Delay
11
11
11
Head
Temperature
Sensor
11
Heater
128
127
128
BC-23 only
Figure 4-18 Bubble Jet Head Driver Block Diagram (Black BJ Cartridge)
Temperature Control Heater x 2
HT0
HVH
HT1
INKS2
HTA
HTB
HENB<1>
HENB<2>
HENB<3>
Heater 1A
Heater 1B
HTC
HENB<0>
Odd ENB
Even ENB
Heater 2A
HTD
Heater 2B
272-bit
Tr.
Array
SEL1
SEL2
BENB3
BE0
BE1
0
BENB1
BENB2
1
2-4 Block Enable Decoder
136-bit Shift
Resistor
Heater 3B
Heater 4A
BE2
2
Heater 3A
Heater 4B
BE3
3
136-bit Latch
Heater 8A
1
2
3
4
Heater 8B
8
9
Heater 9B
16
17
Heater 16A
Heater 9A
Heater 16B
72
73
Heater 17A
Heater 17B
135
136
HDATA
HCLK
HRES
HLATCH
DIODE A
DIODE K
HVdd
GNDL
Heater 72A
Heater 72B
Heater 73A
Head
Temperature
Sensor
Heater 73B
Heater 135A
Heater 135B
Heater 136A
ID0
ID1
Color BJ Cartridge
(Multi-drop)
ID0
ID1
Photo BJ Cartridge
(Multi-drop)
Heater 136B
TOP
VHD
W-HT
Color BJ cartridge (Multi-Drop) and photo BJ cartridge (Multi-Drop) have
the same circuit configuration except for the ID1 connection.
Figure 4-19 Bubble Jet Head Driver Block Diagram
(Color/Photo BJ Cartridge) (Multi-Drop)
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Part 4: Technical Reference
BJC-5000
• 128-bit/136-bit shift resistor
Stores the print data (HDATA) transferred from the logic board using the HCLOCK
timing.
• 128-bit/136-bit latch
Latches the print data (HDATA) converted by the 128-bit/136-bit shift resistor.
• Block enable decoder
After the BENB (block enable) 1, 2, and 3 code signals are input, the specified heat
timing signal is output. The heat timing signal is divided into eighths.
• Heater (1 to 128 and 1 to 136)
The heater boils the ink to produce bubbles required for the nozzles to discharge
ink. The heater heats the bubble jet nozzles. Heating is performed with the timing
signal produced by the block enable decoder, the even number nozzle heat enable
(EvenENB), odd number nozzle heat enable (OddENB), and heat enable (HENB0 to 3)
signals.
• Sub-heater
This heater maintains optimum conditions in the nozzle for discharging ink.
• Temperature control heater
This heater controls the head temperature to stabilize the ink discharge amount.
• Rank resistor
To perform optimum ink discharge control, manufacturing inconsistencies in the
heater characteristics of each BJ cartridge are categorized into 13 types which are
identified by changing the rank resistance value. The printer receives the
differences in the rank resistance as voltage values from the analog port of the MPU,
and detects them after analog to digital conversion. The heater’s characteristics are
thus recognized.
• Head temperature sensor
The temperature changes occurring in the heaters of the nozzles are detected by the
diode to prevent the bubble jet head from overheating.
• Cartridge ID
The BJ cartridge type is recognized through combinations of ID0, ID1, and INKS2.
4-24
Part 4: Technical Reference
BJC-5000
5) Ink cartridge detection and identification feature
This printer detects the presence of a BJ cartridge by the two resistance values of
TOP (pin 9) and DIODEA (pin 10) of the cartridge signal contacts. When the
resistance value of TOP is 750 Ω or less and that of DIODEA is not 0 Ω, the printer
decides that the cartridge is installed. When the resistance values of these pins do
not comply with the above values, the printer decides that the cartridge is not
installed.
When the printer detects the BJ cartridge, the installed BJ cartridge is identified
(black, color, or photo BJ cartridge) based on ID0 (pin 11), ID1 (pin 12), and INKS2
(pin 13) of the cartridge signal contacts.
If the printer is turned on without the BJ cartridge (for example, if a user turns on
the printer immediately after unpacking the printer), the carriage automatically
moves to the cartridge replacement position regardless of its previous position. Also,
if the printer is on and the cartridge is removed without replacement, an BJ
cartridge not installed error will occur.
Table 4-3 Head Installation Status and Signal Detection
ID0
Black BJ cartridge (BC-23)
Low
Photo BJ cartridge (BC-22e Photo)
Low
Color BJ cartridge (BC-21e)
High
Black BJ cartridge (BC-20 [reference]) Low
High: Signal detected
Low: No signal detection (by printer)
4-25
ID1
Low
High
Low
Low
INKS2
TOP
Low
Min. 60
Low
Ω
Low
High
Part 4: Technical Reference
BJC-5000
3.3 Purge Unit
3.3.1 Purge unit functions
The purge unit of this printer has two caps: the left cap performs both cleaning and
capping and the right cap is used exclusively for capping.
1) Capping function
The capping function prevents the nozzles from drying out and ink from leaking by
pressing the cap of the purge unit against the face of the printhead.
If print data is not received for 60 seconds during a printing operation, the purge
unit wipes the printhead face.
If the printer is turned on but not in printing status, the purge unit will cap the
printhead if print data is not received for 5 seconds to 2 minutes, or if the POWER
button is pressed to turn off the printer,.
2) Cleaning function
The cleaning function maintains the high print quality of the printhead by cleaning
the printhead under the conditions given in Table 4-4.
The cleaning operation includes: 1) wiping of paper shreds and ink residue from the
printhead face plate, 2) absorption to suck out ink from the printhead to refresh the
inside of the nozzles with fresh ink, and 3) maintenance jet to prevent
inconsistencies in printing caused by unused nozzles.
Since only the left cap performs cleaning, clean BJ cartridges individually when 2 BJ
cartridges are installed on the carriage. Note also that you cannot clean only one of
the BJ cartridges.
Table 4-4 Ink Consumption During Cleaning (as a Guideline)
When the Black BJ Cartridge is installed
During BJ cartridge replacement
Power on for the first time after connecting the AC power cord
Power on after 72 hours or more since last cleaning
When the printed dot count exceeds designated number of dots
Button pressed for cleaning
Approximate Ink Consumption
Approx. 0.2 g
Approx. 0.2 g
Approx. 0.2 g
Approx. 0.2 g
Approx. 0.2 g
When the Color/Photo BJ Cartridge is installed
During BJ cartridge replacement
Power on for the first time after connecting the AC power cord
Power on after 72 hours or more since last cleaning
During ink cartridge replacement
When cartridge is left at cartridge replacement position for over
10 minutes
When cartridge is at cartridge replacement position and the
printer is turned off
When the printed dot count exceeds designated number of dots
Button pressed for cleaning
24 hours or more after the BJ cartridge or ink cartridge was replaced
Approximate Ink Consumption
Approx. 0.4 g
Approx. 0.4 g
Approx. 0.4 g
Approx. 0.4 g
Approx. 0.4 g
4-26
Approx. 0.4 g
Approx. 0.4 g
Approx. 0.4 g
Part 4: Technical Reference
BJC-5000
3.3.2 Purge unit structure
1) Purge drive gear
The feed roller driven by the paper feed motor operates the purge drive gear via the
transmission gear. The purge drive gear in turn operates the cam which controls
capping. The position of the cam is transmitted by the purge sensor flag and
detected by the purge sensor.
2) Wiper unit
When the carriage moves from left to right, the wiper unit retracts to a position
where it does not come in contact with the head. When the carriage moves from
right to left, however, the wiper unit wipes ink from the BJ cartridge faceplate under
the following conditions: 1) when the printer is turned on and off, 2) once every 60
seconds (or after discharging more than the designated number of dots) during
printing, 3) after the paper feed operation, 4) after a cleaning operation, and 5)
when the cap is opened or closed.
3) Capping unit
The purge unit of this printer is equipped with two caps: the left cap which performs
both ink absorption and capping, and the right cap which is used exclusively for
capping.
After the carriage moves to the capping position, the capping unit presses the cap of
the purge unit against the face of the printhead to cap the printhead when the purge
drive gear is driven.
The left cap is equipped with a waste ink tube and sucks ink from the BJ cartridge
during cleaning by means of a pumping operation. The sucked ink is sent to the
waste ink absorber of the base unit. After ink is sucked, the carriage is moved to
the left from the capping position and the pumping operation is performed again to
discharge the waste ink accumulated in the rubber cap and waste ink tube to waste
ink absorbers.
4) Maintenance jet receiving section
The maintenance jet receiving section takes in ink (for test discharge to maintain the
nozzles’ working condition) discharged from the BJ cartridge.
5) Pump unit
This unit features a tube pump system which sucks ink by using a rotational roller
to apply pressure to the waste ink tube and thus generating negative pressure. The
waste ink tube is connected to the left cap only.
6) Slide lock pin
The slide lock pin is interlocked with the transmission arm and switches the motor
of the paper feed motor.
When the carriage moves farther right from the home position, the hook provided at
the back of the carriage slides the slide lock pin toward the right to unlock the
transmission arm.
The use of the transmission gear motor is switched between the purge drive or sheet
feeder drive depending on the direction of rotation of the paper feed motor when the
transmission arm is unlocked.
7) Carriage lock pin
The carriage lock pin is assembled with the capping unit in a single unit. It fixes the
carriage from the underside so that the carriage does not move toward either side
from the capping position when the cap is pressed against the BJ cartridge face.
4-27
Part 4: Technical Reference
BJC-5000
Slide Lock Pin
Wiper Unit
Purge Unit
Waste Ink Tube
Carriage Lock Pin
Slide Lock Pin
Cap
(Used for capping)
Purge Drive Gear
Pump Unit
Purge Sensor Flag
Cap
(Used for sucking
and capping)
Maintenance Jet Receiving Section
Figure 4-20 Purge Unit
4-28
Wiper Unit
Part 4: Technical Reference
BJC-5000
3.4 Carriage
3.4.1 Carriage function
1) printhead installation
The BJ cartridge is fixed mechanically to the carriage and connected to the logic
board with the carriage ribbon cable.
2) Carriage driver
The carriage motor and carriage belt moves the carriage horizontally across the
paper.
3) Paper feed motor driver switching
When the carriage moves farther right from the capping position, the transmission
arm is unlocked by sliding the slide lock pin of the purge unit. The paper feed
motor used for feeding paper during printing can be switched to drive the purge unit
and sheet feeder.
Carriage Guide Frame
Carriage Ribbon Cable
Carriage
Locking Lever
Home Position Sensor
Contact
Carriage Shaft
Home Position Edge
Head Holder
Carriage Belt
Carriage Motor
BJ Cartridge
Auto-Alignment Sensor
Paper Feed Motor Driver Switching Section
Slide Lock Pin
Figure 4-21 Carriage
4-29
Part 4: Technical Reference
BJC-5000
3.4.2 Carriage structure
1) BJ cartridge attachment section
Two BJ cartridges can be installed on the carriage of this printer.
The two cartridge holders on both sides move with the locking lever which fixes the
BJ cartridge to the carriage.
When a BJ cartridge is fixed to the carriage, the carriage ribbon cable signal
contacts are pressed against the bubble jet head signal contacts and the printing
signal is transmitted from the logic board.
2) Carriage driver section
The stepping-type carriage motor drives the carriage horizontally across the paper
with the carriage belt. The photo interrupter’s home position sensor provided at the
back of the carriage detects the home position edge as the initial position. Then, the
carriage is controlled by a stepping pulse sent to the carriage motor.
The nozzles of the BJ cartridge are positioned at the maintenance jet receiving
section when the carriage is located at the home position.
3) Paper feed motor switching section
The paper feed motor drives either the purge unit, paper feed, or sheet feeder
according to the position of the carriage. When the carriage is not at the extreme
right end position of the printer, the slide lock pin of the purge unit will lock the
transmission arm operation.
When the carriage is moved farther right from the capping position (extreme right
end position of the printer), the slide lock pin is unlocked. Switching of the rotation
direction of the paper feed motor in the unlocked state selects whether the purge
unit or sheet feeder is driven by the paper feed motor. If the feed roller turns in the
feed direction while the slide lock pin is unlocked, the transmission arm gear is
rotated until it reaches the sheet feeder drive gear, and the paper feed motor drives
the sheet feeder.
If the feed roller is rotated in the direction opposite of feeding while the slide lock pin
is unlocked, the transmission arm gear is rotated until it reaches the purge drive
gear, and the paper feed motor drives the purge unit.
4-30
Part 4: Technical Reference
BJC-5000
Top View
When the sheet
feeder is driven
Slide Lock Pin
Transmission Arm
Paper Feed Roller
Transmission Roller
Sheet Feeder
Drive Gear
Eject Roller
Transmission
Arm Gear
Paper Feed Roller Gear
Idle Gear
Sheet Feeder Unit
Purge Drive Gear
Purge Unit
Top View
During paper feed
Top View
When the purge unit is driven
Figure 4-22 Paper Feed Motor Power Switching
4-31
Part 4: Technical Reference
BJC-5000
3.5 Paper Feed/Cut Sheet Feeder
3.5.1 Paper feed/cut sheet feeder function
Paper
Pick-Up Roller Sensor
Pick-up Roller
Pressure Roller
BJ Cartridge
Paper End Sensor
Spur
Eject Roller
Transmission Roller
Sensor Flag
Paper Feed Roller
Pick-Up Guide
Figure 4-23 Paper Feed
4-32
Part 4: Technical Reference
BJC-5000
1) Paper feed mechanism
The paper feed mechanism can supply paper in two ways: automatically from the
cut sheet feeder and manually from the manual feeding slot. The built-in cut sheet
feeder is driven by the paper feed motor. Paper is stacked in the sheet feeder and
fed automatically. Even postcards and envelops can be fed automatically without
mechanical operation (a user does not have to operate the paper selection lever).
When paper is loaded in both the cut sheet feeder and manual feeding slot, priority
is given to the manual feeding slot.
When the paper is sensed by the paper end sensor of the photo interrupter, it is fed
automatically by the paper feed roller until it reaches the starting position for
printing on the platen.
The paper feed is controlled during printing by controlling the rotation speed of the
paper feed roller.
After printing, the paper is delivered out by the eject roller.
2) Automatic printhead and paper clearance adjustment function
The paper feed roller and eject roller are pulled up by the coil spring from a lower
position to a higher position toward the pressure roller and spur respectively, a
consistent clearance is maintained between the printhead face and paper regardless
of the paper thickness.
As a result this printer allows a user to print without switching the carriage position
according to the print paper thickness.
Carriage Shaft
Pressure Roller
Paper Feed Roller
Carriage
Platen
Spur
Sheet Feeder
Spur Cleaner
Eject Roller
Transmission Roller
Paper Feed Roller Bearing
Coil Spring
Figure 4-24 Automatic Printhead and Paper Clearance Adjustment
4-33
Part 4: Technical Reference
BJC-5000
3.5.2 Sheet feeder structure
This printer has no mechanical paper selection lever on the cut sheet feeder. If the
paper meets the required specifications, it can be fed without carriage position
adjustment etc. according to the paper thickness.
The paper is loaded in the cut sheet feeder under the condition where the two leading
edge positions and left corner are caught by the pick-up corner and pick-up hook.
The pick-up roller starts rotating when the paper feed motor drives the sheet feeder
gear and the printer starts printing.
Paper such as plain paper is fed when it is caught by the pick-up corner and pick-up
hook and then pushed into the paper feed section. When thick paper such as
envelopes and postcards is fed, the paper is stiffer than the return force of the pick-up
hook spring and pick-up corner spring. Therefore, the pick-up hook and pick-up
corner are pressed down to feed the paper.
Initial position of the pick-up roller is detected when the flag is sensed by the pick-up
roller sensor of the photo interrupter on the logic board.
When paper is sensed by the paper end sensor, it is fed automatically until it reaches
the print starting position.
If paper is not sensed even when the paper feed operation is executed, a paper not
loaded or paper jam error will occur.
During manual feeding, a user must insert a paper through the manual feeding slot
until it reaches the position where the paper end sensor detects the paper. In the
manual feed mode, the paper passes through a different paper path from that used by
the automatic paper feed mode of the cut sheet feeder. This makes it possible to give
priority to manually fed paper, even when paper is loaded in the cut sheet feeder.
Paper pushed into the paper feed section is fed to the print starting position after it
has been sensed by the paper end sensor.
4-34
Part 4: Technical Reference
BJC-5000
Pick-up Roller
Paper
Pick-up Hook
Pick-up Corner
Paper loaded status
Paper
Manual paper feed mode
When plain paper is fed
When envelope/postcard is fed
Figure 4-25 Paper Separator
4-35
Part 4: Technical Reference
BJC-5000
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
The electrical system functions are handled by the logic section or power supply.
The logic section converts data from the interface into print signals or printer operation
signals, drives the BJ cartridge and motors, and monitors the sensor statuses.
The power supply unit converts the AC input power supply into DC driving power for
the logic board, motor, head and other parts.
When AC power is being supplied to the printer, all printer hardware components are
active except for the following: heater power supply VH and Vcc of the head; power
supply of photo interrupters (5) total; and head rank circuit.
J2
J1
J6
J7
Resume Button
Carriage Motor
Power Button
Control ROM
MPU & Printer Controller
Cover Open Sensor
DRAM
J3
Pick-Up Roller Sensor
J4
Paper End Sensor
J5
Carriage Motor Driver
Buzzer
Paper Feed Motor
Paper Feed Motor Driver
AC Adapter
Figure 4-26 Printer Electrical System
4-36
Part 4: Technical Reference
BJC-5000
4.2 Logic Section
4.2.1 Logic section block diagram
Address Bus A1 to A20
25MHz
DRAM Bus
DRAM
4-Mbit
RA0*8
RA0*8
PWRSW(P60)
Reset Switch
RSMSW(P74)
Transistor
ERROR Indicator
POWER Indicator
ERRLED(P61)
PWRLED(P60)
Transistor
Buzzer
BUZZER
BZ
Multiplexer
Auto-Alignment Sensor
Printer Temperature
Sensor (TH1)
A0*8
RAMD0*15
MPU & Printer Controller
Power Switch
8-Mbit
I/O 1 *16
RAMD0*15
EECS, EECLK
EEDO, EEDI
EEPROM
1 Kbit
CRAPWM
CRA, CRA
CABPWM
CRB, CRB
Driver IC
PM
Carriage Motor
LFAP, LFA0, LFA1
LFBP, LFB0, LFB1
Driver IC
PM
Paper Feed Motor
PESNS(PB2)
Paper End Sensor PS1
ASFSNS(PB3)
Pick-Up Roller Sensor
HPSNS(PA1)
Home Position Sensor
AN 0*2
MUXSEL(P64)
UIO2(PB6)
Purge Sensor
DRSW(P76)
Cover Open Sensor
RANKR, DSR
RANKL, DSL
DTRST, EVENB
DCLK, DTLD
BENB0*2, ODENB
SUBHL, MCH0L*1L
ID0L*1L, IDATAL
HENB0L*3L, ODENB
SUBHR, MCH0R*1R
ID0R*1R, IDATAR
HENB0R*3R, ODENB
BJ Cartridge
LEFT
BJ Cartridge
RIGHT
Black BJ Cartridge
Heater (128 Nozzles)
Color/Photo BJ
Cartridge Heater
(136 Nozzles)
• Sub-heater
• Temperature
Control Heater
• Head Temperature
Sensor
• Rank Resistance
Black BJ Cartridge
Heater (128 Nozzles)
Color/Photo BJ
Cartridge Heater
(136 Nozzles)
• Sub-heater
• Temperature
Control Heater
• Head Temperature
Sensor
• Rank Resistance
Figure 4-27 Logic Board Block Diagram
Paper Feed Roller
Cut-Sheet
Feeder
Pick-Up
Roller
Sensor
BJ Cartridge LEFT
Home Position Sensor
Purge Unit
Purge Sensor
J3
Carriage Motor
J1
J2
Mechanism Control
J4
Vcc (+5VDC)
Power Supply Unit
VH (+24.0VDC)
BJ Cartridge RIGHT
Auto-Alignment Sensor
Carriage
Paper Feed Motor
Paper
End
Sensor
Logic Board
J6
J7
Carriage Control
Printer
Temperature
Sensor
(TH1)
VM (+24.0VDC)
Interface Control
Indicator Control
Switch Detection
J5
Indicator
Control Button
Electrical Section
Figure 4-28 Printer Block Diagram
4-37
A0*19
CE
Control ROM
A1*20
D0*15
X1
X2
RESET
Parallel Interface
ROMCS
D0*15
Data Bus D0 to D15
Reset IC
Part 4: Technical Reference
BJC-5000
4.2.2 Logic section components
1) MPU & printer controller
The MPU contains a 16-bit CPU, 512K-byte work RAM, 24-bit address bus port, 16bit data bus port, stepping motor controller, A-D converter, interface controller,
printhead controller, buffer controller, DRAM controller, EEPROM controller, I/O
ports, and other components.
Built-in CPU
The 16-bit CPU operation is synchronized with a 25MHz external clock input.
Address bus
Bits A1 to A20 of the 24-bit address bus port are connected to an 8M-bit control
ROM (the 4 bits from A21 to A23 and A0 are not used). Chip selection of the control
ROM is performed by the read signal output by the MPU & printer controller.
Data bus
Like the address bus, the 16-bit data bus port is also connected to the 8M-bit
control ROM.
Stepping motor controller
The stepping motor controller outputs the two-phase excitation drive signals of the
carriage motor and paper feed motor.
A-D converter
The following analog signals are detected after they pass through the built-in A-D
converter:
AN0: The printer's internal temperature, print position information, and ink
reflection density are detected by the thermistor on the logic board selected by the
multiplexer, and the auto-alignment sensor on the carriage.
AN1: The head temperature and head rank in the RIGHT BJ cartridge are detected
by the rank resistor and head temperature sensor in the RIGHT BJ cartridge
selected by the multiplexer.
AN2: The head temperature and head rank in the LEFT BJ cartridge are detected by
the rank resistor and head temperature sensor in the LEFT BJ cartridge selected by
the multiplexer.
Interface controller
The interface controller receives, from the computer, 8-bit parallel data which is
synchronized with the data strobe pulse (STROBE) through the BUSY/ACKNLG
handshake. It also controls other interface signals.
Data received through the interface is stored in the DRAM’s receive buffer and
analyzed by the MPU & printer controller.
When the printer initialization signal INIT is input through the interface to the MPU
& printer controller, the MPU & printer controller output a BUSY signal. Also, after
the print data in the print buffer is printed, the printer is initialized.
4-38
Part 4: Technical Reference
BJC-5000
DRAM controller
The DRAM controller controls the 9-bit address/16-bit data bus of the 4M-bit
DRAM, and also performs the read/write control, RAS/CAS control, and refresh
control.
Buffer controller
The buffer controller automatically writes and reads the print buffer in the DRAM,
manages the remaining capacity of the print buffer, and clears the data after it is
read.
Printhead controller
The printhead controller sends the print data read from the print buffer in the
DRAM to the printhead. At the same time, the printed dots are counted for variable
control of the HeatENB signal pulse width (Pre/main pulse width).
The head-driving signals consist of block enable signals (BENB 0, 1, 2) and
odd/even enable signals (ODENB/EVENB) which are used in common for both LEFT
and RIGHT BJ cartridges, and heat enable signals (HENB0L, 1L, 2L, 3L for LEFT;
HENB0R, 1R, 2R, 3R for RIGHT) which are used separately for the LEFT and RIGHT
BJ cartridges. The block enable signals and odd/even enable signals specify the
block for the time-shared drive. The heat enable signals control the conduction time
of the eject heater.
I/O port
Signals for the setting statuses determined by the POWER button, RESET button,
auto-alignment sensor, head temperature sensor, head ID, paper end sensor, home
position sensor, pick-up roller sensor, and purge sensor are input through the input
ports.
Signals for operations such as POWER indicator, ERROR indicator, buzzer, BJ
cartridge detection, and head-driving voltage control are output from the output
ports.
3) Control ROM (U2)
The 8M-bit control ROM contains the printer control program.
4) DRAM (U11)
Controlled by the MPU & printer controller, the 4M-bit control DRAM is used as a
print buffer and working area.
5) Reset IC (U6)
This IC detects the power voltage when power is turned on or during an
instantaneous power failure and resets the MPU & printer controller.
6) EEPROM (U10)
Controlled by the MPU & printer controller, the 1K-bit Electrically Enable and
Programmable ROM (EEPROM) stores various function settings, the total count of
printed sheets, and total waste ink amount.
4-39
Part 4: Technical Reference
BJC-5000
7) Multiplexer (U3)
Triple 2-channel Analog Multiplexer. It has three identical circuits which select and
output either one of the 2 analog inputs made by the MUXSEL output from the MPU
& printer controller.
When MUXSEL is “Low,” inputs “X0, Y0, Z0” are selected; and when MUXSEL is
“High,” inputs “X1, Y1, Z1” are selected. These inputs are then output to AN0, AN1,
and AN2 respectively.
X0: Auto-alignment sensor on the carriage
X1: Thermistor on the logic board
Y0: Head temperature sensor in the RIGHT BJ cartridge
Y1: Rank resistor in the RIGHT BJ cartridge
Z0: Head temperature sensor in the LEFT BJ cartridge
Z1: Rank resistor in the LEFT BJ cartridge
8) Paper feed motor driver (U9)
Controlled by the MPU & printer controller, the paper feed motor driver drives the
paper feed motor (controlled by the two-phase exciter) with a constant-voltage
bipolar drive. The driving IC contains two identical driving circuits.
9) Carriage motor driver (U5)
Controlled by the MPU & printer controller, the carriage motor driver drives the
carriage motor (controlled by two-phase exciter) with a constant-voltage bi-polar
drive. The peak current value is set and driven in accordance with the switching
signal from the MPU & printer controller. The driving IC contains two identical
driving circuits.
VM
F1
ICP-N25
C13
0.1mF,50V
+ C62
100mF,35V
VCC
C10
VSS
VREF1
VREF2
CRAP
CRA0
CRA1
16
20
17
PHASE
I01
I11
CRBP
CRB0
CRB1
10
8
9
0.1mF
R93
1K,
1/16W,
1%
U5
13
15
11
VCC
R41
1.5K,
1/16W,
1%
VS
OUT1A
OUT1B
OUT2A
OUT2B
PHASE2
I02
COMP1
I12
14
RC1
C15
SENSE1
R58
56K,
1/16W
470pF
COMP2
CNCR
J2
CON4 Carriage Motor
24
1
CRA+
CRA–
CRB+
CRB–
21
2
5
1
2
3
4
APPROX.10.5 Ω/
phase
C11
22
R42
23
R56 1 OHM,1/4W,1%
820PF
1K,1/16W
C14
4
R53 1 OHM,1/4W,1%
R57 1 OHM,1/4W,1%
R52
820PF
12
C36
6
7
R92
56K,
1/16W
470pF
RC2
SENSE2
GND
GND
GND
GND
3
1K,1/16W
R55 1 OHM,1/4W,1%
19
18
L6219
F2
ICP-N25
Carriage Motor Driver
VCC
U9
C12
VCC
0.1mF
R54
1.8K,
1/16W,
1%
R4
2K,
1/16W,
1%
LFAP
LFA0
LFA1
LFBP
LFB0
LFB1
13
15
11
16
20
17
10
8
9
14
C65
470pF
470pF
R51
56K,
1/16W
VSS
VREF1
VREF2
PHASE
I01
I11
J3
6
7
VS
OUT1A
OUT1B
OUT2A
1
2
RC1
RC2
SENSE2
GND
GND
GND
GND
C80
C81
C63
R44
1K, 1/16W
C64
4
R45
3
R48 10HM,1/4W
820PF
R46 10HM,1/4W
R49 10HM,1/4W
820PF
1K, 1/16W
19
18
R47 10HM,1/4W
L6219
Paper Feed Motor Driver
Figure 4-29 Motor-Driving Circuit
4-40
C82
1000PF 1000PF 1000PF 1000PF
5
23
COMP2
C79
21
22
SENSE1
CON4
LFA+ 1
LFA– 2
LFB+ 3
LFB– 4
24
OUT2B
PHASE2
I02
COMP1
I12
R50
56K,
1/16W
12
C66
CNLF
Paper Feed
Motor Driver
Paper Feed
Motor
APPROX.
2.7Ω/phase
Part 4: Technical Reference
BJC-5000
5. SENSOR FUNCTIONS
The printer has a pick-up roller sensor, paper end sensor, home position sensor, purge
sensor, cover open sensor, printer temperature sensor, head temperature sensor, and
auto-alignment sensor.
The printer is also provided with a waste ink absorption amount detection function
which counts and stores the waste ink absorption amount in the EEPROM and issues an
error signal when the waste ink absorber becomes full.
Printer Temperature Sensor (TH1)
Home Position
TH1
Cover Open Sensor
Paper End Sensor (right)
Pick-Up Roller Sensor (left)
Head Temperature Sensor
(contact point)
Purge Sensor
Auto-Alignment Sensor
Figure 4-30 Sensors
5.1 Pick-Up Roller Sensor
The photo interrupter-type pick-up roller sensor detects the initial position of the sheet
feeder pick-up roller. When the initial position is detected, the flag interrupts the
sensor and the sensor detection status is activated.
5.2 Paper End Sensor
The photo interrupter-type paper end sensor uses the paper sensor arm’s flag to detect
the presence of paper when the front edge of the paper sheet passes through the paper
feeding mechanism. The sensor is closed by the paper sensor arm when there is no
paper, and opened (paper is recognized) when paper is detected.
4-41
Part 4: Technical Reference
BJC-5000
5.3 Home Position Sensor
The photo interrupter-type home position sensor senses the home position edge and
detects the carriage position. After the edge is detected, the carriage moves to the right.
The position where the maintenance jet is executed becomes the home position.
5.4 Purge Sensor
The photo interrupter-type purge sensor uses a flag in the purge unit to detect the
capping position. When the capping position is detected, the sensor is interrupted and
the sensor detection status is activated.
5.5 Cover Open Sensor
The photo interrupter-type cover open sensor detects the front cover open/close status.
When the front cover is closed, a flag interrupts the sensor and the sensor detection
status is activated.
5.6 Printer Temperature Sensor
The printer temperature sensor on the control board is a thermistor which detects the
printer’s internal temperature. The thermistor resistance fluctuates with any
temperature change. This change in resistance is detected as a change in the voltage
by the MPU & printer controller. The analog value input to the MPU & printer
controller is converted into a digital value by the internal A-D converter to detect the
temperature. After the printer temperature is detected, the head-driving control and
head temperature adjustment signals control are performed accordingly.
5.7 Head Temperature Sensor
The head temperature sensor in the printer is a diode sensor which detects the head’s
internal temperature. Temperature changes in the printer are detected by the MPU &
printer controller as voltage-level changes.
The analog value input to the MPU & printer controller is converted into a digital value
by the internal A-D converter. The digital value is used for stopping the head operation
if the head temperature increases abnormally.
5.8 Auto-Alignment Sensor
The auto-alignment sensor consists of the LED and photo diode. The light of LED is
reflected on a printing paper and read by the photo diode. The auto-alignment sensor
detects the ink density difference between LEFT and RIGHT printheads and print
position (vertical, horizontal, skew) by the changed amount of reflection density while
printing the auto-head alignment pattern. This information is also used by the printer
driver for automatic adjustment during printing. The sensor detects the run-out of the
printhead ink, though only when the auto-head alignment pattern is printed.
4-42
Part 4: Technical Reference
BJC-5000
5.9 Waste Ink Amount Detection
Waste ink is discharged during head maintenance and absorbed by the waste ink
absorber. If the amount of waste ink discharged exceeds the absorption capacity of the
waste ink absorber, ink might leak from the printer. To prevent ink from leaking, the
waste ink absorber capacity is estimated and detected when full.
The waste ink is discharged during the maintenance jet and cleaning operations. The
amount of waste ink discharged by the maintenance jet and cleaning operations is
estimated by the count value of the ink dot counter. Then the waste ink amount is
calculated, taking into consideration the amount of evaporated ink. When the
calculated waste ink amount approaches the preset full capacity of the waste ink
absorber, a waste ink alarm occurs; if it exceeds the full capacity of the waste ink
absorber, a waste ink-full error occurs.
Table 4-5 List of Sensor Functions
Sensor Function
Paper detection
Paper width detection
Home position detection
Cover open detection
Cartridge detection
Ink cartridge detection
BJ cartridge identification
Waste ink amount detection
Printhead LEFT/RIGHT
print position detection
Printhead LEFT/RIGHT ink
density difference detection
No ink detection
Description
Detected by the paper sensor.
N.A.
Detected by the home position sensor.
Detected by the cover open sensor.
Detected by the head rank resistance and
head temperature sensor.
N.A.
Identified by the head's ID0, ID1, and
INKS2.
Calculated with the maintenance jet dot
count.
Detected by the auto-alignment sensor
during printing Provided of auto-head
alignment pattern (and making
adjustment).
Detected by the auto-alignment sensor
during printing Provided of auto-head
alignment pattern (and automatic
adjustment).
Detected by the auto-alignment sensor
during printing Provided of the auto-head
alignment pattern only.
4-43
Status
Provided
Not provided
Provided
Provided
Provided
Not provided
Provided
Provided
Provided
Provided
Provided
Part 4: Technical Reference
BJC-5000
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4-44
Part 5
MAINTENANCE
Page
5- 1
5- 1
5- 1
5- 1
5- 2
5- 2
5- 3
5- 4
5- 4
5- 4
5- 6
5- 8
5- 8
5- 8
5- 9
5 -12
5 -12
5 -14
5 -34
5 -34
5 -37
5 -37
5 -39
1. Maintenance
1.1 Parts for Regular Replacement
1.2 Consumables
1.3 Periodic Maintenance
2. SERVICE TOOLS
2.1 List of Tools
3. GREASE APPLICATION
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
4.2 Disassembly and Reassembly Cautions
4.3 Logic Board and Waste Ink Absorber Replacement Cautions
5. ADJUSTMENTS
5.1 Adjustment Point
5.2 When Adjustment is Required
5.3 Adjustment Procedure
6. TROUBLESHOOTING
6.1 Troubleshooting
6.2 Error Condition Diagnostics
7. LOCATION AND SIGNAL ASSIGNMENT
7.1 Logic Board
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.2 Circuit Diagrams
Part 5: Maintenance
BJC-5000
1. MAINTENANCE
1.1 Parts for Regular Replacement
Level
User
Service personnel
Part
None
None
1.2 Consumables
Level
User
Service personnel
Consumable
Black BJ cartridge (BC-23 and BC-20 [reference])
Color BJ cartridge (BC-21e)
Photo BJ cartridge (BC-22e Photo)
Ink cartridge (BCI-21 Black/BCI-21 Color)
None
1.3 Periodic Maintenance
Level
User
Service personnel
Periodic Maintenance
None
None
5-1
Part 5: Maintenance
BJC-5000
2. SERVICE TOOLS
2.1 List of Tools
Ordinary Tool
Phillips screwdriver
Blade screwdriver
Tweezers
Multi-meter
Use
For removing screws
For removing plastic parts
For installing and removing coil springs
For troubleshooting
Special Tool (Parts Number)
Gap gauge 1.9mm
(QY9-0038-000)
Tension spring
(QY9-0039-000)
Black BJ cartridge
Use
For adjusting the head gap
Grease MOLYKOTE PG641
(CK-0562-000)
For adjusting the carriage belt tension
Procure as special servicing tool. Do not use the black
BJ cartridge of a user
Apply to the specified place as shown in Figure 5-1
5-2
Part 5: Maintenance
BJC-5000
3. GREASE APPLICATION
Use the special tool to apply the grease at the points and amounts shown below.
Sliding Section of Platen Gear
(Approx. 22 to 46mg)
Cross-Sectional View of
Gear and Sliding Section
(Approx. 22 to 46mg)
Shaft Sliding
Section Surface
(Approx. 12mg)
Carriage Guide Frame Rear Surface
(Evenly apply 30 to 50mg of
grease on the entire surface.)
Carriage Shaft
(Evenly apply 300 to 500mg of grease
on the entire surface.)
Sliding Section of
Slide Lever
(Approx. 18 to 36mg
each at 2 locations)
Sliding Section of
Purge Unit
(Approx. 40 to 60mg)
Sliding Section
with LF Roller
(Approx. 20mg)
Sliding Section with Chassis
(Approx. 20 to 40mg)
Sliding Section
with Chassis
(Approx. 20mg)
Sliding Section with Feed Roller
(Approx. 20 to 40mg)
Figure 5-1 Grease Application Points
5-3
Part 5: Maintenance
BJC-5000
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
When disassembling or reassembling the printer, refer to the parts catalog. The figure
numbers in the parts catalog are provided in the order of disassembly. Close-up
diagrams are also provided for parts where you need to exercise caution during
disassembly and reassembly.
4.2 Disassembly and Reassembly Cautions
When disassembling or reassembling the printer, heed the following cautions.
4.2.1 Fastening screws of idler pulley assembly
When the screws of the idler pulley assembly are loosened during removal of the
carriage or other maintenance services, be sure to use the tension spring (QY9-0039000) listed as a special tool for the installation procedure.
Before fixing the screws, move the carriage 3 times sideways to stabilize the belt
tension. After fixing the screw, be sure to remove the tension spring.
Carriage Belt
Idler Pulley Assembly
Screw
Tension Spring
(QY9-0039-000)
Figure 5-2 Idler Pulley Assembly
5-4
Part 5: Maintenance
BJC-5000
4.2.2 Carriage guide frame installation
The carriage guide frame adjusts the head gap between the BJ cartridge nozzles and
platen to obtain optimum printing quality. It is mounted on the printer frame.
The head gap must be adjusted only when the carriage guide frame position on the
printer frame is changed.
The screws fastening the carriage guide frame are painted red so that they are not
loosened during servicing. If the carriage guide frame position is changed
unintentionally, follow the procedure in “5. ADJUSTMENTS” (page 5-8) to adjust the
head gap.
Carriage Guide Frame
Screw
Screw
Figure 5-3 Carriage Guide Frame
5-5
Part 5: Maintenance
BJC-5000
4.2.3 Unlocking the carriage lock
The carriage is normally locked at the capping position when the printer is turned off.
This feature is provided by the carriage lock mechanism in the purge unit. It prevents
the carriage from moving from the capping position during transportation or being
moved by hand to assure that normal printhead protection (capping) is performed.
If the carriage moves when the printer turned on during servicing, unplug the AC
power cord to unlock the carriage. If the printer is not turned on or the carriage does
not move, follow the procedure below to unlock the carriage lock manually.
You can also lock the carriage manually when you transport the printer.
3
2
1
Figure 5-4 Unlocking the Carriage Lock
4.3 Logic Board and Waste Ink Absorber Replacement Cautions
4.3.1 Logic board replacement cautions
The logic board’s EEPROM stores the various settings, waste ink amount, total count
of printed sheets, and other data related to the printer. The data stored in the logic
board’s EEPROM, excepting the total waste ink amount setting (25%, 50%, 75%),
cannot be rewritten into the new EEPROM after the logic board is replaced.
The data in the EEPROM installed on a replacement logic board is unclear. After the
logic board/EEPROM is replaced, clear the EEPROM. After clearing the EEPROM,
calibrate the auto-alignment sensor as described in “Part 3: 3.4 Service Mode” (page 318).
When replacing the logic board (clearing the EEPROM), visually check the amount of
waste ink in the waste ink absorber. Replace the waste ink absorber or set the total
waste ink amount as required. Depending on the amount of waste ink already
absorbed in the waste ink absorber, ink may leak from the printer even before a waste
ink-full warning or waste ink-full error is output. (See “Part 3: 3.4 Service Mode” on
page 3-18 for setting the waste ink amount.)
However, it is not necessary to replace the waste ink absorber or set the waste ink
amount if the printer has been in use for less than 2 weeks and less than 50 pages
have been printed out.
5-6
Part 5: Maintenance
BJC-5000
NOTE
The waste ink absorber consists of three layers. When the printer is first
used, most of the waste ink is absorbed by the lower waste ink absorber
layer. The amount of waste ink in the upper layer of the waste ink
absorber rises as the waste ink amount increases.
Absorber Cover
Waste Ink Absorber
**
Figure 5-5 Waste Ink Absorber
4.3.2 Cautions after replacing the waste ink absorber
After a waste ink-full error (warning) occurs and the waste ink absorber is replaced,
reset the waste ink counter in the Service Mode. (See “Part 3: 3.4 Service Mode” on page
3-18.)
NOTE
When a waste ink-full error (warning) occurs, it can be assumed that the
printer has printed more sheets than its service life called for. However,
this also depends on how many times the cartridge has been replaced and
the usage conditions. When a color/photo BJ cartridge is used, more ink
is consumed due to head maintenance compared to a black BJ cartridge.
Therefore, the waste ink amount will also be more.
5-7
Part 5: Maintenance
BJC-5000
5. ADJUSTMENTS
5.1 Adjustment Point
Only the distance (head gap) between the BJ cartridge’s nozzles and platen needs to be
adjusted to the designated value (approximately 1.9mm) to ensure optimum printing
quality. This adjustment is done by moving the cartridge guide frame fixing position
forward or backward.
The adjustment is necessary only when loosening the red screw which secures the
carriage guide frame.
Carriage Guide Frame
Screw
BJ Cartridge
Head Gap
Platen
Figure 5-6 Head Gap Adjustment
5.2 When Adjustment is Required
If the carriage guide frame fixed to the printer frame is repositioned, the head gap must
also be adjusted. The fixing screws are painted red so that they are not loosened
unintentionally.
5.2.1 Tools required for adjustment
Table 5-1 Tools Requied for Head Gap Adjustment
Tool
Gap gauge 1.9 mm
(QY9-0038-000)
Black BJ cartridge
Use
For adjusting the head gap
Procure as special servicing tool. Do not use the black BJ
cartridge of a user.
5-8
Part 5: Maintenance
BJC-5000
5.3 Adjustment Procedure
5.3.1 Preparation
1) Remove the upper case unit.
2) Turn on the printer under the condition where no BJ cartridge is installed in the
carriage. (At this time, the carriage will move to position A.)
3) Disconnect the power cord.
4) Push in the carriage guide frame as indicated by arrows in Figure 5-7 and lightly
fix the frame with screws A and B.
5) Install a black BJ cartridge (procured for servicing) on the left of the carriage.
CAUTION
Before making the adjustment, make sure that the gap gauge is not
deformed and there are no foreign particles on it and the platen.
The platen has a structure which enables it to move up and down
vertically while maintaining a fixed distance between the head and paper
depending on the paper thickness. When the printer is turned on and
initialization starts, the LF motor rotates in the normal direction. This
operation will set the platen in the normal position of no paper loaded
condition. Do not press the platen down during adjustment.
Carriage Guide Frame
Carriage Belt
Screw A
Screw B
Black BJ Cartridge
Position A
Platen
Figure 5-7 Adjustment Preparation
5-9
Part 5: Maintenance
BJC-5000
5.3.2 Adjustment
1)
2)
3)
4)
5)
6)
Place the gap gauge at position B.
Move the carriage to position B.
Gradually loosen screw A until the carriage guide frame moves forward under its
own weight using screw B as a pivot.
Lightly push the screw A end of the carriage guide frame once or twice and check
that the carriage guide frame pivots around the screw B as indicated by arrows in
Figure 5-9.
If it does not return to the original position, you have fixed screw B too tight. If
the screw B end moves as well, then screw B is too loose. Fix the carriage guide
frame lightly again and repeat the procedure from step 1).
Lightly fix screw A.
Lightly push the screw A end of the carriage guide frame once or twice and check
that the carriage guide frame moves around screw B as shown by the arrows
figure 5-9.
If it does not return to the original position, screw B is too tight. And if the screw
B end moves as well, then the screw B is too loose. Refasten the carriage guide
frame lightly again and repeat the procedure from step 1).
Carriage Guide Frame
Carriage Belt
Screw A
Screw B
Position B
Position A
Position C
Nozzle Section
Paper Guide
Grade Difference
Position B
Gap Gauge
Position C
Figure 5-8 Head Gap Adjustment (1)
5-10
Part 5: Maintenance
BJC-5000
6)
7)
8)
9)
10)
11)
12)
13)
Move the carriage to position A, and then place the gap gauge at position C.
Move the carriage to position C.
Gradually loosen screw B until the carriage guide frame moves forward under its
own weight using screw A as a pivot.
Lightly push the screw B end of the carriage guide frame once or twice and check
that the carriage guide frame pivots around screw A as indicated by the arrows
shown in Figure 5-9.
If it does not return to the original position, you have fixed screw A too tight. If
the screw A end moves as well, then screw A is too loose. Fix the carriage guide
frame lightly again and repeat the procedure from step 1).
Lightly fix screw B.
After moving the carriage to position A, place the gap gauge at position B.
Repeat the procedure from 2) to 13) twice.
Gradually tighten screws A and B alternately.
Figure 5-9 Head Gap Adjustment (2)
CAUTION
Do not use move the carriage by hand. It may cause the carriage guide
frame to shift. To move the carriage, move the carriage belt manually
instead.
5-11
Part 5: Maintenance
BJC-5000
6. TROUBLESHOOTING
6.1 Troubleshooting
6.1.1 Overview
This chapter consists of the following two sections on subsequent pages: “Error
condition diagnosis” for diagnosing a problem when the cause is unknown and
“Symptoms” for resolving problems whose causes are known.
In the case of an unknown problem, diagnose the problem. If the cause is known,
follow the corrective actions to resolve the problem.
6.1.2 Troubleshooting cautions
1. Before troubleshooting, make sure the connectors and ribbon cable are properly
connected. Especially if a problem occurs at random, be sure to check the
connections thoroughly.
2. When servicing the printer with its outer casing removed and the AC adapter
connected, beware of electrical shocks and PCB short circuiting.
3. Troubleshooting is described in flowchart form. The following symbols are used in
the flowcharts.
Start/End
Procedure
Judgement
Action/Replace
Jump
Stop
4. If there is a problem with the printing quality or paper feeding, first check whether
the installation site and paper meet the required specifications. Also check
whether the printer settings are correct and paper is loaded properly.
5. After replacing parts or repairing the printer, be sure to make a test print to
confirm that the problem has been fixed. If the problem still persists, troubleshoot
again without the steps already executed.
Example 1
Print defects ?
No
Yes
END
1. Replace the ink
cartridge
2. Replace the BJ
cartridge
Print defects
even after
cartridge
replacement?
No
END
Yes
5-12
Part 5: Maintenance
BJC-5000
6. In some cases, several corrective actions are successively indicated in “Error
condition diagnosis” and “Symptoms.” These are steps that must be followed to
resolve the problems. After you perform each corrective action step, make a test
print to confirm whether the problem has been fixed. If the problem persists,
perform the next step.
Example 2
Corrective action 1: After replacing the BJ cartridge, execute a test printout to check
whether the problem has been fixed. If the problem persists, perform the next step
(corrective action 2), which calls for replacement of the logic board.
Remove and reinstall
the BJ cartridge
Printer
recognizes the
cartridge ?
Yes
No
1. Replace the
BJ cartridge
• BJ Cartridgeis faulty
• Check the BJ cartridge
2. Replace the
logic board
• MPU is faulty
END
7. Ink cartridge replacement as a corrective action is only applicable when the color
BJ cartridge has produced the “Symptom.” When using the black BJ cartridge for
troubleshooting, advance to the next step.
8. After finishing troubleshooting, be sure to reconnect connectors and tighten any
loosened screws.
CAUTION
When replacing the control board, be sure to execute the EEPROM all
clear and AA sensor calibration and check the waste ink absorption
amount of the waste ink absorber. In addition, replace the waste ink
absorber or set the waste ink amount according to the requirement. Refer
to “Part 3: 3.4 Service Mode” (page 3-18) and “Part 5: 4.3 Logic Board and Waste
Ink Absorber Replacement Cautions” (page 5-6).
5-13
Part 5: Maintenance
BJC-5000
6.2 Error Condition Diagnostics
6.2.1 Diagnostic flowcharts
Power ON Sequence Flowchart
Start
Connect power cable of
AC adapter to wall outlet.
(Hard power ON)
ROM/RAM/EEPROM
Check
Turn Power ON.
(Soft power ON)
ROM/RAM/EEPROM
OK?
No
Yes
ROM error
Beeper: Sounds 7 times
Indicator: Blinks 11 times (orange)
RAM error
Beeper: Sounds 7 times
Indicator: Blinks 12 times (orange)
EEPROM error
Beeper: Sounds 7 times
Indicator: Blinks 10 times (orange)
Paper jam error
Beeper: Sounds twice
Indicator: Lights (orange)
Indicator blinks
(green).
Paper check
(Paper end sensor)
Is paper out?
Yes
No
Detection of Heads
A
5-14
Part 5: Maintenance
BJC-5000
A
OK?
No
Yes
Left-head
recognition error
Beeper: Sounds 3 times
Indicator: Lights (orange)
Right-head
recognition error
Beeper: Sounds 4 times
Indicator: Lights (orange)
Sub-heater error
Beeper: Sounds 7 times
Indicator: Blinks 8 times (orange)
Cleaning error
Beeper: Sounds 7 times
Indicator: Blinks 3 times (orange)
Temperature sensor error
Beeper: Sounds 7 times
Indicator: Blinks 5 times (orange)
Purge unit initialization
OK?
No
Yes
Temperature sensor check
OK?
No
Yes
Detection of carriage
in home position
OK?
No
Yes
Home position error
Beeper: Sounds 7 times
Indicator: Blinks twice (orange)
Auto sheet feeder
initialization
OK?
Yes
No
Sheet feeder error
B
5-15
Beeper: Sounds 7 times
Indicator: Blinks 4 times (orange)
Part 5: Maintenance
BJC-5000
B
Auto cleaning if needed
Waste ink check
OK?
Yes
No
Waste ink full warning
Waste ink full error
Indicator lights
(green).
End
5-16
Beeper: Sounds 6 times
Indicator: Lights (orange)
Beeper: Sounds 7 times
Indicator: Blinks 6 times (orange)
Part 5: Maintenance
BJC-5000
6.2.2 Error recovery
a) Error display
<Cause> During initialization, the contents in the ROM cannot
1. ROM Error
2. RAM Error
be read.
<Suspected Parts> Control ROM
<Corrective Action> Replace the logic board.
<Cause> RAM reading and writing is not being performed
properly.
<Suspected Parts> DRAM
<Corrective Action> Replace the logic board.
3. EEPROM Error
CAUTION
<Cause> EEPROM reading and writing is not being performed
properly.
The auto alignment sensor has never been calibrated.
<Suspected Parts> EEPROM
<Corrective Action> Replace the logic board.
Calibrate the auto-alignment sensor.
When a RAM error or ROM error occurs, the exact error may not be
displayed correctly. When replacing the logic board, execute the
“EEPROM all clear” function in Service mode, then calibrate the auto
alignment sensor. In addition, check the amount of waste ink absorbed by
the waste ink absorber in the bottom case unit. If necessary, also replace
the waste ink absorber or set the waste ink counter value in Service mode.
(See Part 5, “4.3 Logic Board and Waste Ink Absorber Replacement Cautions.”)
5-17
Part 5: Maintenance
BJC-5000
4.Home Position
Error
<Cause> The home position cannot be detected.
<Suspected Parts> Home position sensor, carriage motor,
logic board, carriage ribbon cable,
carriage belt, carriage shaft, idler pulley
<Corrective Action>
Visual check of carriage
drive mechanism
Correct ?
Check for any paper jams, carriage belt wear/deterioration/
dislocation, deformation of the carriage or carriage guide frame,
scratching or bending in the carriage shaft, deterioration/damage
of idler pulley, etc.
Move the carriage with your hands and check to see if it moves
smoothly. (See “4.2.3 Unlocking the Carriage for how to unlock the carria
Check that there is no abnormal noise.
No
Yes
Repair/replace
a faulty part(s).
Does it turn during initialization?
Is it out of synchronization?
Carriage motor
operation check
Correct ?
No
Yes
Carriage motor check
Measuring
Pin No. Normal reading
points
1-2
J2
Approximately10.5 Ω
3-4
No
Correct ?
Yes
Replace
the carriage motor.
Replace
the logic board.
Measuring Pin No. Sensor
points
Open
J6
30
Closed
Home position
sensor check
Normal reading
Low level
High level (Home position sensed)
While the power is on, manually move the carriage and check
to see if it is sensed at the home position.
Correct ?
Yes
Replace
the logic board.
No
Replace
the carriage unit
• The home position sensor is faulty
• The carriage ribbon cable is broken.
• The MPU and printer controller are faulty.
5-18
Part 5: Maintenance
BJC-5000
<Cause> Cleaning or capping is not executed properly or not
5.Cleaning Error
detected.
<Suspected Parts> Purge unit, purge sensor, purge sensor
cable, paper feed motor, paper feed
drive power transmission section, logic
board
<Corrective Action>
During initialization, do the paper feed motor, feed roller,
eject roller, etc., rotate? Any abnormal noises?
Is the paper feed motor out of synchronization?
Visual check of paper
feed system operation
Correct ?
No
Yes
1. Repair/Replace a
faulty part(s).
2. Replace the logic
board.
• Check to see if the purge sensor cable connectors
(which are located at both the purge sensor and
the logic board) are connected properly and check
the joint cable conductivity.
Purge sensor
cable check
Correct ?
No
Yes
Re-connect/Replace
the purge sensor cable.
• Remove the purge unit from the printer, and fully rotate
the drive gear by hand in both directions to check that
it moves smoothly.
• Check the purge sensor.
Purge unit check
Measuring
Pin No. Sensor
points
Open
J1
2, 3
Close
Correct ?
Yes
Check/Repair
the paper feed
motor drive switching
mechanism
No
Normal reading
Low level
High level
• While the power is on, remove the purge unit,
then check the measuring points by rotating
the drive gear manually to open and close the
sensor.
Replace
the purge unit.
Check to see if each gear or slide lock lever is deformed
or damaged and if any spring is dislocated.
See Part 4 “3.4.2 Paper Feed Motor Drive Switching
Section” on page 4-29.
5-19
Part 5: Maintenance
BJC-5000
<Cause> The home position of the pick-up roller cannot be
6.Sheet Feed
error
detected.
<Suspected Parts> Sheet feeder unit, pick-up roller, paper
feed motor drive transmission sensor,
slide lock lever, logic board
<Corrective Action>
• Remove the sheet feeder unit, then manually rotate the
drive gear fully to check to see if the parts such as
the pick-up roller operate smoothly.
Check the sheet
feeder unit operation.
Correct ?
Yes
No
Repair/Replace
the sheet feeder unit.
• With your eyes, check the appearance and movement of
the paper feed roller, which is the drive transmission section
Check the paper feed
of the paper feed motor, and the gear which is located on the
motor drive transmission
drive switching mechanism.
gear located at the
•
At
the same time, check to see if the slide lock lever which
platen section.
locks the drive switching section operates smoothly. See Part 4
“3.4.2 Paper Feed Motor Drive Switching Section” on page 4-29.
No
Correct ?
Yes
Repair/Replace
a faulty part(s).
Replace
the logic board.
• The pick-up roller sensor is faulty.
• The MPU and printer controller are faulty.
5-20
Part 5: Maintenance
BJC-5000
<Cause> The thermistor is abnormal.
<Suspected Parts> Thermistor
<Corrective Action> Replace the logic board.
7.Machine
Temperature
Error
8.Waste Ink-Full
Warning/Error
<Cause> The waste ink absorbers’ estimated waste ink amount
has reached 95% (Warning) or 100% (Error).
<Suspected Parts> Waste ink absorbers, logic board
<Corrective Action>
Visual check of the
waste ink absorber
Waste
ink absorbed is
75 % or more of
the limit ?
Yes
• Check to see how much ink the waste ink
absorber has absorbed.
(Check the rate of ink penetration for the entire
waste ink absorber as a guideline to determine
the waste ink counter setting value.)
No
1. Reset the waste
ink amount in the
EEPROM.
0% (clear), 25%, 50% or 75%
(See Part 3 “3.4 Service Mode.)
2. Replace the logic
board.
Replace the waste
END
ink absorber.
• Clear the total of the waste ink amount
saved in the EEPROM.
5-21
Part 5: Maintenance
BJC-5000
9.Head
Temperature
Error
<Cause> The head temperature is abnormally high.
<Suspected Parts> BJ cartridge, logic board
<Corrective Action>
When you use two BJ cartridges on both the right and left sides, follow the flow below for each BJ
cartridge.
Turn off the power with
the POWER button,
and wait several
minutes.
Since the head temperature may be very high,
do not touch the carriage.
Remove/install
the BJ cartridge.
Power on
Error
displayed ?
No
Yes
END
• Faulty BJ cartridge connection
1. Replace
the ink cartridge.
2. Replace
the BJ cartridge.
Check the
connector cable.
Correct ?
Yes
• Carriage ribbon cable
No
Replace
the carriage unit.
Replace
the logic board.
5-22
Part 5: Maintenance
BJC-5000
<Cause> The sub heater which is located inside the BJ cartridge
10. Sub Heater
error
cannot be driven.
<Suspected Parts> BJ cartridge, logic board, carriage unit
<Corrective Action>
When you use two BJ cartridges on both the right and left sides, follow the flow below for each BJ
cartridge.
Remove/install
the BJ cartridge.
Error
displayed?
No
Yes
END
If the BJ cartridge or carriage contact side is soiled
with ink mist and the like, clean or replace it.
Clean the contacts.
Check the BJ cartridge
conductivity.
14
7
2 1
Pin 1, 2, 14: GND terminals
Pin 7: Sub heater drive signal terminal
Correct ?
Yes
No
Replace
the BJ cartridge.
1. Replace the logic
board.
2. Replace the
carriage unit.
5-23
Part 5: Maintenance
BJC-5000
<Cause> The BJ cartridge is off from a position where the
11. Cartridge
Displaced
Error
cartridge may not be replaced.
<Suspected Parts> BJ cartridge, logic board, carriage unit
<Corrective Action>
When you use two BJ cartridges on both the right and left sides, follow the flow below for each BJ
cartridge.
Remove/install the
BJ cartridge.
Error
displayed ?
No
END
Yes
1. Replace the BJ
cartridge.
2. Replace the logic
board.
3. Replace the
carriage unit.
5-24
Part 5: Maintenance
BJC-5000
<Cause> • The paper feed operation is executed but the paper
12. Paper Feed
Error/Paper
Jam
is not fed.
• The paper eject operation is executed but the
paper is not ejected.
<Suspected Parts> Sheet feeder unit, pick-up roller sensor,
paper end sensor, logic board.
<Corrective Action>
With your eyes, check for paper jams.
Check for gear deformation or damage.
Visual check of the
paper feed mechanism
Correct ?
No
Repair/replace
a faulty part(s).
Yes
During initialization, do the paper feed motor,
pick-up roller, feed roller, eject roller, etc., rotate?
Any abnormal noises?
Is the paper feed motor out of synchronization?
Check the paper feed
operation.
No
Correct ?
Repair/replace
a faulty part(s)
Yes
Replace the logic board.
Is the paper fed properly from the sheet feeder
when the pick-up roller rotates?
Check the paper feed
operation.
Correct ?
Yes
No
Check the sheet feeder unit.
Remove the sheet feeder unit,
and operate it with your hands
to check. Check any
contamination, wear or
deterioration of the rubber
ring or separation sheet
of the pick-up roller, and
deformation or damage
of a gear, etc.
No
Correct ?
Replace the
sheet feeder unit.
Yes
Next
Page
Check/Replace the paper Check for deformation or damage
feeder motor drive
of each gear and the slide lock lever,
switching section.
and removed springs. See Part 4
“3.4.2 Paper Feed Motor Power Switching
Section” on page 4-29.
5-25
Part 5: Maintenance
BJC-5000
Pick-Up Roller Sensor
Previous
Page
Check the pick-up
roller sensor flag
Correct ?
Paper
Check for pick-up
roller sensor flag
deformation or
damage.
Measuring
points
Yes
3 and 4
NO.3
Replace the
logic board.
Does it move smoothly when
you move it with your hands?
Is it deformed or damaged?
No
Replace the paper
end sensor flag or
repair/replace a
faulty part(s).
Yes
Correct ?
Normal reading
No
Check the paper
end sensor flag.
Check the
paper sensor.
Sensor
Pin No.
Open
Low level
High level (Initial position)
Close
Remove the logic board, then turn on the
PS2
NO.4
power to check the rear of the sensor.
Yes
Correct ?
Paper End Sensor
Sensor Flag
Replace the
pick-up roller.
PS2
Correct ?
Pick-Up Roller
No
Yes
Check the pick-up
roller sensor.
Pick-Up Roller
Sensor Flag
Measuring
Pin No.
points
Sensor
Normal reading
Low level (with paper)
Open
Close
High level (no paper)
Remove the logic board, then turn on the
PS1
power to check the rear of the sensor.
PS1
3 and 4
No
NO.4
NO.3
Replace the
logic board.
END
5-26
Part 5: Maintenance
BJC-5000
<Cause> 1. The BJ cartridge recognition ID error is detected.
13 Right Head
Recognition
Error
2. The rank resistance error of the head is detected.
3. The resistance error of the head temperature
sensor is detected.
<Suspected Parts> BJ cartridge, carriage unit, carriage
cable, logic board
14. Left Head
Recognition
Error
<Corrective Action>
The right head recognition error is not displayed in the same manner as the left head recognition error
is (see Part 3, “3.1 Error Indications”). Check to see on which head the error occurred, then follow the
flow below to perform the corrective action of the appropriate head.
• Is the combination of the installed cartridges appropriate?
(See the table below.)
• Are the cartridges installed properly?
Check how the BJ
cartridge is.
Correct ?
Left BJ cartridge
BC-23
BC-20 (reference)
BC-21e
BC-21e
No
Yes
Remove the
BJ cartridge.
• Is any ink or foreign
substance stuck to
Check the BJ cartridge
the cartridge?
contact section
• Is the contact
(cartridge and both
ends of the carriage).
section deformed
or positioned
improperly?
No
Correct ?
Yes
Clean the
contact section.
Re-install the
BJ cartridge.
Replace the
BJ cartridge.
Does
the same error
occur again ?
Yes
No
END
1. Replace the
carriage unit.
2. Replace the logic
board.
5-27
BC-21e
BC-23
BC-20 (reference)
BC-21e
Right BJ cartridge
BC-23
BC-20 (reference)
BC-21e
BC-23
(BC-20 as reference)
BC-22e Photo
None
None
None
Part 5: Maintenance
BJC-5000
Symptoms
<Symptom> The power does not turn on even though you
1. The Power
Does Not Turn
On
press the POWER button.
<Cause> The AC adapter and/or logic board is (are) faulty.
<Corrective Action>
START
Check the DC plug
and output voltage.
DC+24V(VM)
DC+24V(VH)
GND GND GND
Does
the DC plug
output the proper
voltage ?
DC+5V(Vcc)
VHPWR
GND
No
Replace the
AC adapter.
Yes
Replace the
logic board.
5-28
Part 5: Maintenance
BJC-5000
<Symptom> • The cartridge installed is not recognized.
2.The Printer
Does Not
Recognize The
Cartridge
• The cartridge installed is recognized incorrectly.
<Cause> • Faulty contact between the cartridge and carriage.
• The cartridge, carriage cable and/or logic board is
(are) faulty.
• The combination of the right and left BJ cartridges
installed is incorrect.
<Corrective Action>
When you install two BJ cartridges on the right and left sides, follow the flow below to perform the
corrective action for each cartridge respectively.
Check to see how the • Is the combination of the installed cartridges appropriate?
BJ cartridge is installed. (See the table below.)
• Are the cartridges installed properly?
Correct ?
Left BJ cartridge
BC-23
BC-20 (reference)
BC-21e
BC-21e
No
Yes
Remove/install
the cartridge.
Does
the printer
recognize the
cartridge ?
Yes
END
Re-install the cartridge.
BC-21e
BC-23
BC-20 (reference)
BC-21e
Right BJ cartridge
BC-23
BC-20 (reference)
BC-21e
BC-23
(BC-20 as reference)
BC-22e Photo
None
None
None
No
1. Replace the
cartridge.
• The cartridge is faulty.
• Check the cartridge.
2. Replace the
logic board.
• The MPU and printer controller
are faulty.
3. Replace the
carriage unit.
To check to see if the cartridge is recognized properly,
check for conductivity at the check points indicated
in the diagram below.
29 28
20
27
26 25 24
21 22 23
19 18 17 16
15
3
11 12 13 14
10
9
4
8 7
6 5
2 1
Black BJ Cartridge (BC-23)
Measuring points
Normal reading
11-14
Approximately 0Ω
Pin No. 12-14
Approximately 0Ω
13-14
1-9
Approximately 60 to 750 Ω
Color BJ Cartridge (BC-21e)
Measuring points
Normal reading
∞
11-14
12-14
Approximately
0Ω
Pin No.
13-14
Approximately 0Ω
1-9
Approximately 60 to 750Ω
Photo BJ Cartridge (BC-22e Photo)
Measuring points
Normal reading
11-14
∞
Pin No. 12-14
13-14
Approximately 0 Ω
1-9
Approximately 60 to 750 Ω
Black BJ Cartridge (BC-20 [reference])
Measuring points
Normal reading
11-14
Approximately 0Ω
Pin No. 12-14
13-14
∞
1-9
Approximately 60 to 750 Ω
Pins No.10-29 should not be 0 Ω. (This applies to all BJ cartridges.)
5-29
Part 5: Maintenance
BJC-5000
<Symptom> • The printer does not print at all.
3. Faulty Printing
<1>: No
Printing
<Cause>
• Printing stops halfway.
• Only a certain color is not printed.
• The ink has run out or the BJ cartridge is faulty.
• The logic board, carriage cable and/or purge unit is
(are) faulty.
<Corrective Action>
When you install two BJ cartridges on the right and left sides, follow the flow below to perform the
corrective action for each cartridge respectively.
Check how the BJ
cartridge is installed.
Remove/install
the BJ cartridge.
Execute a test print.
Is the
printing result
defective ?
• Is the combination of the installed cartridges appropriate?
(See the table below.)
• Are the cartridges installed properly?
Left BJ cartridge
Right BJ cartridge
BC-23
BC-23
BC-20 (reference) BC-20 (reference)
BC-21e
BC-21e
BC-21e
BC-23
(BC-20 as reference)
BC-21e
BC-22e Photo
BC-23
None
BC-20 (reference)
None
BC-21e
None
While the printer is turned on, hold down the
POWER button for one beep. Then release
the POWER button to print out the test pattern.
No
Yes
END
1. Replace the ink
cartridge.
2. Replace the BJ
cartridge.
Is the
printing result
still defective even
after cartridge
replacement ?
No
END
Yes
1. Replace the logic
board.
2. Replace the
carriage unit.
• The carriage cable is faulty.
3. Replace the purge
unit.
• The purge unit is faulty.
5-30
Part 5: Maintenance
BJC-5000
<Symptom> • There is blotching.
4.Faulty Printing
<2>: Stripes
Appear
<Cause>
• There are white stripes on the printed paper.
• There are certain dots not printed.
• The BJ cartridge or cartridge contacts is/are faulty.
• The carriage cable is faulty.
• The purge unit is faulty.
<Corrective Actions>
White stripe sample
Check the
environment and
paper specifications.
Do they
meet the required
specifications ?
Troubleshooting consists of error condition
diagnosis, which is required if the cause of an error
is unknown, and error recovery, which is performed
if the cause of an error is known. If the cause of
an error is unknown, perform the error condition
diagnosis, and if it is known, perform error
recovery.
No
Use paper which
meets the
specifications.
Yes
Remove and re-install
the BJ cartridge.
While the printer is turned on, hold down
the POWER button for one beep.
Then release the POWER button
to print out the test pattern.
Execute a test print.
Is the
printing result
defective ?
No
Yes
END
1. Replace the ink
cartridge.
2. Replace the BJ
cartridge.
Do
blotches and/or
stripes still appear on the
printed paper even
after cartridge
replacement ?
No
END
Yes
Check the carriage
cable conductivity.
Conduction
cutoff ?
Yes
Replace the
carriage unit.
No
Replace the
purge unit.
5-31
Part 5: Maintenance
BJC-5000
5 Faulty Printing
<3>: Other
Print Problems
Symptom
Paper contamination
Check item
Ink mist on the platen
Ink has dried up around the
head nozzles. (No paper stain
occurs by paper feeding or
ejecting but occurs during
printing only.)
Ink has clogged or paper bits
have stuck around the head
wiper or head capping area of
the purge unit.
Ink has adhered to the paper
transport system (Paper is
already contaminated before
it reaches the platen.)
Spur tracks appear.
Lines are not ruled
properly.
Corrugated printing
Print quality is not
uniform.
Ink has adhered to the spurs.
The spurs are deformed.
The BJ cartridge has been
installed incorrectly.
The head is not aligned
properly.
The problem occurs when
your BJ cartridge (which may
cause this problem) is
installed in a normallyoperating printer.
The head gap has not been
adjusted to the regulated
value (You cannot check to
see if this gap is
appropriate*).
The carriage guide frame is
deformed.
Frictional wear between the
carriage base and the carriage
shaft.
The head has not been
aligned properly.
Insufficient cleaning / Ink
run-out / Faulty BJ cartridge
The printout is either
too light or too dark.
The printing darkness
is unbalanced.
Check the printing mode.
The BJ cartridge is faulty.
The head has not been
aligned properly.
Corrective action
Use a piece of soft cloth
lightly damped with water to
clean the platen.
Clean the head nozzles and
their surroundings several
times. If the problem
persists, replace the BJ
cartridge.
Replace the purge unit or
wiper unit.
Disassemble the paper
transport system, then use a
piece of soft cloth lightly
damped with water to clean
the platen.
Use a soft toothbrush to clean
the spurs.
Replace the spurs.
Reinstall the BJ cartridge
correctly.
Use the printer driver to
perform the automatic head
alignment operation.
Replace the BJ cartridge.
Adjust the head gap (See “5.
Adjustments” on page 5-8).
Replace the carriage guide
frame.
Replace the carriage unit.
Use the printer driver to
perform the automatic head
alignment operation.
Perform the cleaning
operation several times, then
execute a test print.
Replace the BJ cartridge.
Set the desired printing mode.
Replace the BJ cartridge.
Use the printer driver to
perform the automatic head
alignment operation.
* It is difficult to check the head gap. Readjust the head gap, then check whether it fixes this problem.
5-32
Part 5: Maintenance
BJC-5000
<Symptom> • No printing.
6.Faulty Interface
• An unspecified color is printed.
<Cause> • The printer driver is not set properly.
• The interface cable is faulty.
• The logic board located at the printer is faulty.
<Corrective Action>
Execute a test print.
Is the
test pattern printed
normally ?
While the printer is on, hold down the
POWER button for one beep. Then release
the POWER button to print the test pattern.
No
Replace the
logic board.
Yes
Check the printer
driver settings.
Correct ?
Yes
No
Reset the printer
driver.
1. Replace the
interface cable.
2. Replace the
logic board.
• The interface connector is faulty.
• The MPU and printer controller are faulty.
5-33
Part 5: Maintenance
BJC-5000
7. LOCATION AND SIGNAL ASSIGNMENT
7.1 Logic Board
1
J1
1
31
J7
3 32
J2
1
31
2
4
32
J6
1
2
J4
8
J3
1
4
1
1
19
J5
18
36
Figure 5-10 Logic Board
J6 (Carriage cable connector)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Signal name
VHGND
VHGND
MCH0
MCH1
VH
VH
SUBH
RSV1
RANK
DIA
ID0
ID1
IND
LGND
HENB0
EVENB
HENB1
HENB3
ODENB
BENB0
IN/OUT
...
...
IN
IN
OUT
OUT
OUT
...
IN
OUT
IN
IN
...
...
OUT
OUT
OUT
OUT
OUT
OUT
21
BENB1
OUT
22
BENB2
OUT
23
24
25
26
27
28
29
30
31
32
VCC
DCLK
DTLD
DTRST
HENB2
IDATA
DIK
HPO
HHPG
HPA
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
...
OUT
Description
GND for the head drive voltage VH
GND for the head drive voltage VH
Driver signal for the temperature control heater
Driver signal for the temperature control heater
Head drive voltage
Head drive voltage
Sub heater drive signal
Not used
Detection signal for rank resistance
Head temperature sensor (diode) anode
Cartridge detection signal
Cartridge detection signal
Cartridge detection signal
GND for the head logic drive voltage HVdd
Heat enable (Y)
Even nozzle heat enable
Heat enable (M)
Heat enable (Black)
Odd nozzle heat enable
Signal for generating the block enable decoder output
signal
Signal for generating the block enable decoder output
signal
Signal for generating the block enable decoder output
signal
IC drive voltage (+ 5V)
Print data transfer signal
Timing signal for print data to be latched
Latch reset signal
Heat enable (C)
Printing data
Head temperature sensor (diode) cathode
Home position sense signal High (sense)/Low
GND
Photo LED drive signal
5-34
Part 5: Maintenance
BJC-5000
J7 (Carriage cable connector)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Signal name
VHGND
VHGND
MCH0
MCH1
VH
VH
SUBH
RSV1
RANK
DIA
ID0
ID1
IND
LGND
HENB0
EVENB
HENB1
HENB3
ODENB
BENB0
IN/OUT
...
...
IN
IN
OUT
OUT
OUT
...
IN
OUT
IN
IN
...
...
OUT
OUT
OUT
OUT
OUT
OUT
21
BENB1
OUT
22
BENB2
OUT
23
24
25
26
27
28
29
30
31
32
VCC
DCLK
DTLD
DTRST
HENB2
IDATA
DIK
AAO
AAA
AAG
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
OUT
...
Description
GND for the head drive voltage VH
GND for the head drive voltage VH
Driver signal for the temperature control heater
Driver signal for the temperature control heater
Head drive voltage
Head drive voltage
Sub heater drive signal
Not used
Detection signal for rank resistance
Head temperature sensor (diode) anode
Cartridge detection signal
Cartridge detection signal
Cartridge detection signal
GND for the head logic drive voltage HVdd
Heat enable (Y)
Even nozzle heat enable
Heat enable (M)
Heat enable (Black)
Odd nozzle heat enable
Signal for generating the block enable decoder output
signal
Signal for generating the block enable decoder output
signal
Signal for generating the block enable decoder output
signal
IC drive voltage (+ 5V)
Print data transfer signal
Timing signal for print data to be latched
Latch reset signal
Heat enable (C)
Printing data
Head temperature sensor (diode) cathode
AA sensor sense signal (Analog input)
Photo LED drive signal
GND
J1 (Purge sensor connector)
Pin No.
1
2
3
Signal name
PSVCC
GND
U102(PB6)
IN/OUT
OUT
...
IN
Description
Photo LED drive signal
GND
Purge sensor sense signal High (sense) / Low
J2 (Carriage motor connector)
Pin No.
1
2
3
4
Signal name
CRA+
CRACRB+
CRB-
IN/OUT
OUT
OUT
OUT
OUT
Description
Carriage motor phase A+
Carriage motor phase A Carriage motor phase B +
Carriage motor phase B -
J3 (Paper feed motor connector)
Pin No.
1
2
3
4
Signal name
LFA+
LFALFB+
LFB-
IN/OUT
OUT
OUT
OUT
OUT
Description
Paper feed motor phase A +
Paper feed motor phase A Paper feed motor phase B +
Paper feed motor phase B -
5-35
Part 5: Maintenance
BJC-5000
J4 (DC power connector)
Pin No.
1
2
3
4
5
6
7
Signal name
VH
GND
VM
GND
VCC
GND
VHPWR
IN/OUT
IN
...
IN
...
IN
...
OUT
8
GND
...
Description
+24 VDC
GND
+24 VDC
GND
+5 VDC
GND
VH power supply for the print head heater, ON
(High)/OFF signal
GND
J5 (Interface connector)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Signal name
STB
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
ACK
BUSY
PE
SLCT
AFXT
N.C.
S-GND
F-GND
+5 V
STB-GND
D1-GND
D2-GND
D3-GND
D4-GND
D5-GND
D6-GND
D7-GND
D8-GND
ACK-GND
BUSY-GND
INT-GND
INT
FAULT
S-GND
N.C.
+5 V PU
SELIN
IN/OUT
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
IN
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
Description
See Part 2 for details.
5-36
5-37
J2
PS2
J1
1
3
1
4
32
31
D12
D10
PS1
D11
J6
J7
D9
D8
D7
U5
2
2
1
1
E
E
Q22
Q23
B
B
F1
32
C76
C77
BZ1
R
X1
DAY
SCE -4 T
QH1-9002-01
QG8-8002
S1
POWER
104
53
105
52
INDX
U12
U2
156
1
FNCK
157
208
1
J3
U11
PS3
4
ZD1
ZD2
31
J4
8
D6
D5
D4
D3
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
1
18
1
S2
RESET
J5
D18 D17 D16 D15 D14 D13
BJC-5000
Part 5: Maintenance
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.1.1 Logic board
Figure 5-11 Logic Board (Top View)
36
19
F2
C71
C62
U9
Part 5: Maintenance
Q14
R98
R122
R101
R104
R100
C46
R132
R39
Q10
Q9
R16
Q8
R134
R33
TP56
R114
R120
FB52
R79
R137
FB51
R159
R157
R66
R20
R7
C68
R110
R108
R106
U14
Q15
R136
R155
R154
R90
R62
R65
R19
C67
R96
U15
R152
R138
C14
R52
R41
R105
Q11
C85
R153
R156
R151
FB53
R158
R75
R80
R129
R35
R34
R128
U3
R23
R22
C78
R119
R113
R116
R121
R117
R126
R111
R109
R107
C37
TP57
R124
R38
R125
TP58
R28
R74
R77
R31
R27
R73
R76
R30
R70
TP6
R61
C39
R144
R147
R143
FB56
R150
R78
R82
R130
R37
R36
R127
R58
C10
C11
Q19
R94
R69
R68
R191
R97
Q13
Q17
Q3
LED1
Q2
R95
LED2
LED3
R102
R26
Q24
Q26
R42
R29
R93
R92
C36
C15
R53
R57
R56 R55
R99
R123
R103
Q25
Q27
R63
R115
Q18
C61
C70
C49
R60
R131
R32
FB55
R81
R140
FB54
R149
R148
R21 R141
R146
R145
R91
R142
R139
R24
R118
TP4
R133
R71
C7
C52
C53
C54
R38
TP7
C51
C86
C5 C40
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
R40
R112 TP33
BJC-5000
TH1
C4
U10
TP27
TP10
Q6
TP5
TP3
C27
C42
C18
1 2 3 4 5 6 7 8 9 XYZ
C22
C25
C24
C23
R14
R15
FB3
C83
R13
R10
FB62
TP11
TP18
R9
R12
R17
C21
C9
C20
C6
TP8
TP9
FB1
TP31
R59
C28
C44
FB61
TP19
TP30
C19
R1
C16
U6
TP21
TP20
R8
TP2
TP12
C55
C56
R5
R43
C26
C43
FB15
R46
R48
R4
R44 C63
TP34
TP25
TP26
TP22
TP23
C79
C80
C81
C82
R88
R166
R160
R51
C66
C65
R50
C12
R54
R49
R86
TP32
Q4
FB34
FB35
R87
R170
R83
VH
FB32
FB50
FB49
FB48
FB46
FB47
FB45
FB44
FB33
FB37
FB36
FB38
FB39
FB42
FB43
FB40
FB41
R189
ZD12
GND
VM
GND
VCC
GND
GND
R89
Q7
C72
R185
R184
R186
R187
C74
C75
R188
C73
R72
C84
R169
C48
ZD3
R175
R176
R177
R178
R179
R180
R181
R182
R183
FB27
C47
R47
D2
C13
FB57
FB4
FB31
FB30
FB29
R45 C64
R167
R190
R84
R168
R171
FB26
FB28
C17
FB22
FB21
FB20
FB19
FB18
FB17
FB16
R6
R174
R85
R173
R172
C87
R67
R25
C69
TP15
TP14
TP17
R64
R163
R164
R162
R165
R161
C45
FB7
FB8
FB9
FB10
FB11
FB12
FB13
FB14
FB58
FB59
FB60
FB23
FB24
FB25
TP13
TP16
C8
98 M
A
R11
Figure 5-12 Logic Board (Bottom View)
5-38
Part 5: Maintenance
BJC-5000
VEE
GND
<03-E7>
<03-C8> ACK
IFD[0....7]
157
IFD7 158
IFD6 159
IFD5 160
IFD4 161
IFD3 162
IFD2 163
VCC
TP22
INT
TP23 TP25 TP26
SLIN STB AFXT
C22
C25
1000PF
0.1mF
164
165
IFD1 166
IFD0 167
168
169
170
171
RA3 172
RA2 173
RA1 174
RA0 175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
RA8 202
RA7 203
RA6 204
RA5 205
RA4 206
207
208
AFXT
<03-C8>
<03-D8> STB
SLIN
<03-C8>
<03-B8> INT
BK1608LM152
<01-B8> RAS
<01-B8> WE
FB4
FB57
VCC
VCC
VCC
R15
10K,1/16W
R14
10K,1/16W
RA[0....8]
DRAM(4Mbit)
U11
TC514260C-70JS
BK1608LM152
26
RA8
FB23
25
RA7
FB24
24
RA6
FB25
23
RA5
FB26
22
RA4
FB28
19
RA3
FB27
18
RA2
FB29
17
RA1
FB30
16
RA0
FB31
13
14
29
28
27
TP13 TP15 TP17
OE LCAS WE
TP14 TP16
UCAS RAS
1
6
20
<01-D7> WE
<01-D7> RAS
<01-C6> LCAS
<01-C6> UCAS
<01-C6> OE
I/O16
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
I/O8
I/O7
I/O6
I/O5
WE
RAS I/O4
LCAS I/O3
UCAS I/O2
I/O1
OE
A8
A7
A6
A5
A4
A3
A2
A1
A0
VCC VSS
VCC VSS
VCC VSS
TP34
VH
VH
TP4
VCC
0.1mF
TP35
VM
TP6
VCC
TP30
GND
TP31
GND
1000PF
C8
1000PF
0.1mF
TP33
MGND
TP11
RD
1
R1
MT2
1
Linking mounting
pads to GND
<01-B5> RD
C24
1000PF
0.1mF
VCC
(8Mbit)
VCC
ROMCS
<01-B4>
FB62
FB61
BK1608HS330
U2
UPD23C8000
XCZ-187
A[1....20]
VCC
MT1
C23
Control ROM VCC
C47
TP32
GND
FB58
FB59
FB60
BK1608LM152
VCC
C45
VM
TP5
VCC
<01-B8> LCAS
<01-B8> UCAS
<01-B8> OE
VCC
VCC
C17
RAMD15
RAMD14
RAMD13
RAMD12
RAMD11
RAMD10
RAMD9
RAMD8
BK1608LM152
39 FB7
RAMD15
RAMD14
38 FB8
RAMD13
37 FB9
RAMD12
36 FB10
34 FB11
RAMD11
33 FB12
RAMD10
32 FB13
RAMD9
31 FB14
RAMD8
10 FB15
RAMD7
9
RAMD6
FB16
8
RAMD5
FB17
7
RAMD4
FB18
5
RAMD3
FB19
4
RAMD2
FB20
3
RAMD1
FB21
2
RAMD0
FB22
40
35
21
RAMD7
RAMD6
RAMD5
RAMD4
RAMD3
RAMD2
RAMD1
RAMD0
ACK
IFD7
IFD6
IFD5
IFD4
IFD3
IFD2
VSS
VDD
IFD1
IFD0
AFXT
STB
SLIN
INIT
RA3
RA2
RA1
RA0
RAS
WE
NMI
RAMD7
RAMD6
RAMD5
RAMD4
RAMD3
RAMD2
RAMD1
RAMD0
PB0
PB1(INT5)
RAMD15
RAMD14
RAMD13
RAMD12
RAMD11
RAMD10
RAMD9
RAMD8
LCAS
UCAS
OE
VSS
VDD
RA8
RA7
RA6
RA5
RA4
TDI(SCANIN)
TDOI(SCANOUT)
22
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
42
1
2
33
34
35
36
37
38
39
40
41
3
4
5
6
7
8
9
10
32
4.7K,1/16W
11
13
12
31
VCC
A19
A18
D15
A17
D14
A16
D13
A15
D12
A14
D11
A13
D10
A12
D9
A11
D8
A10
D7
A9
D6
A8
D5
A7
D4
A6
D3
A5
D2
A4
D1
A3
D0
A2
A1
A0
BYTE / VPP
CE
OE
VSS
VSS
R11
10K,1/16W
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
CRBP
<03-E3>
CRB1 <03-E3>
CRA1 <03-F3>
CRAP <03-F3>
<03-F3>
<03-F3>
C28
ID1L <02-D8>
ID0L
<02-D8>
C18
1000PF
0.1mF
1
IDATAL
HENB2L
HENB3L
HENB1L
HENB0L
INDL
SUBHL
<02-D8>
<02-C7>
<02-C7>
<02-C7>
<02-C7>
<02-B6>
<02-F7>
MCH1L
MCH0L
<02-E8>
<02-E8>
VCC
<01-B3> PWRLED 2
R69
150 OHM,1/4W
Indicators
Q2
FAIL4P
R68
150 OHM,1/4W
VCC
<01-B3> ERRLED 2
R191
180 OHM,1/4W
LED3
ORENGE LED
LED1
GREEN LED
0.1mF
1000PF
R70
180 OHM,1/4W
<01-F3>
LED2
ORENGE LED
BUZZER
C6
0.1mF
1000PF
R20
3
4
2
ASFSNS
<01-F5>
10K,1/16W
PS2
TLP832
C68
100PF
R64
390 OHM,1/10W
4
C
R67
39K,1/16W
R25
DRSW
10K,1/16W
PS3
TLP832
<01-C3>
C69
100PF
VCC
TP2
X2
TP7
RESET
TP3
VCC
Reset IC
U6
VCC
B
R5
1K,1/16W
PST592EMT
CST25.0MX040
1
C5
1
C55
GND 2
VCC
0.1mF
2
OUT VOC
MARES
GND
3
4
C4
C40
0.1mF 1000PF
15PF
RESET
VCC
S2
C61
R22
10K,1/16W
R71
1.5K,1/16W
Q11
FAIL4M
R66
39K,1/16W
Pick-UP
Roller
Sensor
1
Oscillator
X1
R24
10K,1/16W
2
100PF
R63
390 OHM,1/10W
2
C20
C67
D
R21
10K,1/16W
BZ1
CD11PA-Z
PESNS <01-F5>
10K,1/16W
3
15PF
Beeper
R19
Cover Open
Sensor
1
VCC
Q3
FAIL4P
4
2
VCC
C56
R65
39K,1/16W
Paper End
Sensor 3
1
R9
IDATAR <02-D4>
10K,1/16W
HENB2R <02-C4>
HENB3R
<02-C4>
HENB1R <02-C4>
HENB0R <02-C4>
INDR
<02-B3>
SUBHR <02-F4>
MCH1R <02-E4>
MCH0R <02-E4>
ID1R
<02-D4>
ID0R
<02-D4>
DTRST <02-D7,02-D4>
DTLD
<02-D7,02-D4>
DCLK
<02-D8,02-D4>
BENB2 <02-C7,02-C4>
BENB1 <02-C7,02-C4>
BENB0 <02-C7,02-C4>
EVENB <02-D7,02-D4>
ODENB <02-C7,02-C4>
MUXSEL <01-E7>
DRSW <01-C1>
R8
1M,1/16W
1000PF
PSVCC <02-A6>
PSI
GP1SQ59C
TP12
X1
E
C86
1000PF
R62
390 OHM,1W
TP21
ID0C
3 OUT OUT
C44
C85
R59
47K,1/16W
R12
10K,1/16W
OPTIONAL
DO NOT INSTALL
OPTIONAL
DO NOT INSTALL
1000PF
R 17 VCC VCC VCC
10K,1/16W
TP20
ID1C
Q6
FAIL4P
2
C9
0.1mF
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
VCC
C19
<01-F4> PSPWR
C21
A[1....20]
TP9
WR
C27
VCC
<01-A4>
<01-A5>
TP8
HWR
F
EEDO
EEDI
6
5
0.1mF
VCC
IDATAL
HENB2L
HENB3L
HENB1L
HENB0L
INDL
SUBHL
VDD
VSS
MCH1L
MCH0L
IDATAC
HENB2C
HENB3C
HENB1C
HENB0C
INDC
SUBHC
MCH1C
MCH0C
ID1C(P85)
ID0C(P84)
IDATAR
HENB2R
HENB3R
HENB1R
HENB0R
INDR
SUBHR
MCH1R
MCH0R
ID1R(P81)
ID0R(P80)
DTRST
DTLD
DCLK
BENB2
BENB1
BENB0
EVENB
ODENB
MUXSEL(P64)
DRSW(P76)
VDD
VSS
RESET
X2
X1
WAIT
INT6
INT7
INT0
T5L25
C43
TP10
EEDO
8
7
NC
NC
VCC GND
CS
DO
DI
SK
1000PF 0.1mF
ID1L
ID0L
BUZZER
AALED
VCC
MPU & Printer Controller
U12
VCC
3
4
VCC
D[1....15]
30
28
26
24
21
19
17
15
29
27
25
23
20
18
16
14
TP27
EEDI
AT93C46R-10SC
C16
3
7
8
LOGIC BOARD 01
U10
TP19
EECLK
1
2
BUZZER
<01-A4>
AALED
<02-A2>
PSPWR <01-E2>
IFPWR
RNKPWR
VDDPWR
VHPWR
CRBP
CRB1
CRA1
CRAP
CRB0
CRA0
INH
A
B
C
LFA0 <03-D3>
LFAP <03-D3>
HPSNS <02-A6>
<01-D1>
<01-D1>
1
EEPROM(1Kbit)
EECS
EECLK
1
C51
51PF
TP18
EECS
R43
3.3K,1/16W
C83
1000PF
3
0.01mF
C52
51PF
BUSY
PE
SLCT
<01-C3>
R38
68K,1/16W,0.5%
C53
51PF
LFA1
LFBP
LFB0
LFB1
FAULT
SLCT
PE
BUSY
BLMHA1218
<01-A7> RD
FB3
<01-A7> RMOCS
FB1
WR
HWR
MUXSEL
6
11
10
9
<03-D3>
<03-D3>
<03-C3>
<03-C3>
<03-C8>
<03-C8>
<03-C8>
<03-C8>
AN3
AN2
AN1
AN0
Z0
Z1
4 AN2
Z
1
5
3
VCC
J1
IFPWR
<03-F8>
RNKPWR <02-B8,02-B4>
VDDPWR <02-E3,02-E6>
VHPWR <03-B1>
3
Y0
Y1
<02-A8> DSL
<02-B8> RANKL
OPTIONAL
DO NOT INSTALL
R13
10K,1/16W
15 AN1
Y
FAULT
2
1
1000PF
LFB1
LFB0
LFBP
LFA1
<02-A4> DSR
RANKR
<02-B4>
VCC
R10
C46
14 AN0
X
X0
X1
1000PF
1
2
3
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
THR
0.1mF
2
CNPG(for Purge Sensor)
BUSY
PE
SLCT
FAULT
LFPWR
LFB1/SMC ST0
LFB0/SMC ST1
LFBP/SMC ST2
LFA1/SMC ST3
VREF
AN3
AN2
AN1
AN0
AGND
LFA0/SMC ST4
LFAP/SMC ST5
HPSNS(PA1)/SMC WR
ASFSNS(PB3)/SMC RD
PESNS(PB2)/SMC CS
WDTOUT/SMC TEST
A0/SMC GDIS
CLK/SMC DTAD
U1O2(PB6)/SMC EMPTY
U1O1(P77)/SMC FULL
U1O0(P65)/SMC TO
PSPWR(P63)/SMC INTP
IFPWR(P62)/SMC WAIT
RNKPWR(P55)/SMC OE
VDDPWR(P54)/SMC D0
VHPWR(P53)/SMC D1
CRBPWM(T03)/SMC D2
CRB(PG03)/SMC D3
CRB(PG01)/SMC D4
CRAPWM(TO1)/SMC D5
CRA(PG02)/SMC D6
CRA(PG00)/SMC D7
VSS
TEST0
TEST1
TEST2
EEDO/EA
VDD
EEDI/AM816
EECS/SMC A0
EECLK/SMC A1
BUZZER/SMC A2
AALED/SMC A3
ASYNC DIS
SCAN ENA
ID1L(P83)
ID0L(P82)
C54
12
13
<02-A3> AASENS
C42
PSVCC R40 390,1/16W
NANDTREE
D11
D4
D3
D12
D10
D5
D2
D13
VDD
D9
D6
D1
D14
VSS
D8
D7
D0
D15
RD
ROMCS
WR
HWR
A17
A1
A16
A2
A15
A3
A14
A4
A13
A5
A12
A6
A11
A7
VSS
A10
A8
A9
A18
VDD
A20
A19
A21
A22
A23
ERRLED(P61)
PWRLED(P60)
PWRSW(P74)
RSMSW(P75)
NTCCM20124AG473HC
VCC
R16
10K,1/16W
C26
3
R39 39K,1/16W
1
2
3
4
5
6
7
8
9
10
11
D9
12
D6
13
D1
D14 14
15
16
D8
17
D7
18
D0
D15 19
20
21
22
23
24
A17
A1
25
A16
26
27
A2
28
A15
29
A3
30
A14
A4
31
32
A13
33
A5
34
A12
35
A6
36
A11
A7
37
38
39
A10
40
A8
A9
41
42
A18
43
44
A20
45
A19
A21 46
A22 47
A23 48
ERRLED 49
PWRLED 50
PWRSW 51
RSMSW 52
16
THI
VCC
4053
0.1mF
4
3
Multiplexer
U3
C7
Temperature
Senser
5
D11
D4
D3
D12
D10
D5
D2
D13
VCC
6
1
7
VCC
LFA0
LFAP
HPSNS
ASFSNS
PESNS
8.2 Circuit Diagrams
8
Control Buttons
0.022mF
A
POWER
R23
10K,1/16W
C78
S1
0.022mF
5-39
Part 5: Maintenance
BJC-5000
7
6
5
2
3 D7
4
7
SUBH
3
MCH0
Q24
25K1772
MCH0R
R76
100 1/16W
1
3
<01-D3>
<01-E3> HENB2L
R156
HENB3L
R136
VCC
<01-E3>
U14A
<01-C3,02-C4>
11
+
3
LM324
<01-C3,02-C4>
28 IDATA
1
5
25 DTLD
R158
R159
R75
4
3
Q14
FAIL4M
R114
100K,1/16W
0.5%
4
R112
12K,1/16W 0.5%
_ U14C
9
+
1
MCH1
D12
2
R106
180K,
1/16W
0.5%
R108
7.5K,
1/16W
0.5%
<01-E1>
<01-F8> RANKR
R147
HENB3R
R141
R7
1K,1/16W
0.5%
VCC
29 DIK
<01-F5> HPSNS
R133
39K, 1/16W
30 HPO
R134
PSVCC
32 HPA
<01-F8> DSR
31 HHPG
C70
C49
1000PF
3
11
14
R78
1
5
25 DTLD
15 HENB0
2
3
17 HENB1
1
5
27 HENB2
20
2
3
1
5
22
VCC
R97
750 OHM,
1/10W 0.5W
2
Q18
FAIL4M
VCC
R130
10K,1/16W
Q19
FAIL4M
R127
10K,
1/16W
R91
<01-D3> INDR
100,1/16W
VCC
VCC
R111
8
100 OHM,
1/16W 0.5%
_ U15C
9
+
D18
R107
180K,
1/16W
0.5%
2
3
1
5
B
9
RANK
8
RSV1
13
IND
10
DIA
4
HZM6.8FA
29
10
LM324
R113
12K,1/16W 0.5%
BENB2
19 ODENB
VCC
R99
39K,
1/16W
0.5%
BENB0
21 BENB1
HZM6.8FA
2
C
18 HENB3
4
R123
56K,
1/16W
0.5%
+ 5
R116
100K,1/16W
0.5%
3
D17
7
CM324
D
DCLK
2
4
VCC
+ 12
ID0
28 IDATA
HZM6.8FA
<01-F8> AASENS
390 OHML 1/10W
R33
10K, 1/16W
100PF
R149
R119
33K 1/16W
0.5%
VCC
R117
U15D 100K,1/16W
0.5%
_ 13
DTRST
16 EVENB
HZM6.8FA
R150
R103
100K,1/16W
0.5%
VCC
VCC
D15
R148
BENB2
510K,1/16W 1%
R102
VCC
100K,1/16W
0.5%
U15B
_ 6
23
24
FB54
FB55
BLM11A601S
R121
470K,1/16W 1%
5
HZM6.8FA
5
D16
BENB1
R105
LM324
4
1
1
HZM6.8FA
100 1/16W
<01-F4,02-B8> RNKPWR
3
10
LM324
<01-D3> HENB2R
<01-C3,02-C7>
E
4
<01-C3,02-C7> ODENB
9 RANK
8 RSV1
13 IND
10 DIA
100,1/16W
8
100 OHM,
1/16W 0.5%
R128
10K,
1/16W
R90
INDL
<01-E3>
VCC
<01-D3> HENB1R
R146
<01-C3,02-C7>
VCC
R129
10K,1/16W
VCC
R110
+
LM324
19 ODENB
3
3
+ 12
22 BENB2
Q15
FAIL4M
2
R145
3
5
R96
750 OHM,
1/10W 0.5W
2
R98
39K,
1/16W
0.5%
4
12 ID1
<01-D3> HENB0R
<01-C3,02-C7> BENB0
21 BENB1
VCC
11
4
R118
33K 1/16W
0.5%
VCC
R115
U14D 100K,1/16W
0.5%
_ 13
11
20 BENB0
VCC
R120
470K,1/16W 1%
CM324
D11
3
4
U15A
_ 2
HENB3
2
100 1/16W
100 1/16W
R140
<01-C3,02-D7> DTLD
1
18
HZM6.8FA
R122
56K,
1/16W
0.5%
1
11
R101
100K,1/16W
0.5%
VCC
MCH0
D14
R82
100 1/16W
R144
<01-D3> IDATAR
HENB0
HZM6.8FA
4
7
LM324
3
14 LGND
R143
<01-C3,02-D8> DCLK
27 HENB2
5
1
+ 5
R142
<01-D3>
1
VCC
510K,1/16W 1%
R100
VCC
100K,1/16W
0.5%
U14B
_ 6
R139
17 HENB1
3
2
R104
15
4
100 1/16W
<01-F4,02-B4> RNKPWR
14
3
HZM6.8FA
R157
BENB2
<01-C3> ID0R
<01-C3> ID1R
4
<01-C3,02-C4> ODENB
RANKL
2
2
BENB1
ID0
ID1
R36 <01-C3,02-D7> EVENB
10K,1/16W
D9
D10
<01-C3,02-C4> BENB0
_ 2
SUBH
26
VCC
R37
10K,1/16W
EVENB
24 DCLK
FB51
FB52
BLM11A601S
DTRST
<01-C3,02-D7>
VCC
R109
7.5K,
1/16W
0.5%
R126
1K,1/16W
0.5%
VCC
30
32
R32
10K,1/16W
C39
0.1mF
R131
22K, 1/16W
DIK
AAO
A
AAG
Q10
VCC
R132
1 FN1A4P3
2
11
Q9
BLM11A601S
FN1A4P
FB56
2
<01-F4,02-E6> VDDPWR
3
R155
7
VCC
3
16
Q27
23K1772
R81
100 1/16W
1
5
12
<01-E3> HENB1L
VHGND
VHGND
F
1
3
3
1
HZM6.8FA
R154
<01-E3> HENB0L
<01-F7> DSL
3
4
100 1/16W
R137
<01-C3,02-D4> DTLD
<01-F7>
2
100 1/16W
R153
IDATAL
<01-E3>
4
R80
100 1/16W
R151
DCLK
1
26 DTRST
D14
4
R152
1
2
D13
R61
47K,1/16W
11
R138
ID1L
5 HZM27FA
LGND
4
<01-C3,02-D4>
ID0L
1
R31
10K,1/16W
11
<01-F3>
R77
100 1/16W
23 VCC
14
R79
100 1/16W
1
<01-F3>
<01-D3> MCH1R
4
<01-C3,02-D4> EVENB
R34
10K,1/16W
R35
10K,1/16W
MCH1
11
<01-C3,02-D4> DTRST
VH
VH
Q26
25K1772
4
Q8
BLM11A601S
FN1A4P
FB53
R60
47K,1/16W
VCC
1
1
VCC
2
<01-F4,02-E3> VDDPWR
R28
10K,1/16W
VCC
3
2
4
Q25
23K1772
1
3
1
5
6
R30
10K,1/16W
2
R74
100 1/16W
2
4
R27
10K,1/16W
MCH1L
Q17
FAIL4M
2
R29
12K,1/10W
Q23
25B1443
3
SUBHR
<01-D3>
5
2
3
1
VHGND
VHGND
HZM27FA
1
R73
100 1/16W
1
2
2
Q13
FAIL4M
2.7K,
R125
3.9K,1/4W 1/16W
2
3
1
2
R95
2
1
Q22
25B1443
3
SUBHL
R26
12K,1/10W
2200mF,35V
LOGIC BOARD 02
J7
C38
0.1mF,50V
1
0.1mF,50V
C77
VH
VH
3
5
6
R94
2.7K,
R124
3.9K,1/4W 1/16W
<01-E3>
1
CNH (for Right Printhead)
J6
C37
2200mF,35V
MCH0L
2
CNH (for Left Printhead)
C76
<01-E3>
3
VH
VH
<01-E3>
4
11
8
31 AAA
180 OHM, 1/4W
<01-F3> AALED
5-40
Part 5: Maintenance
BJC-5000
8
7
6
5
4
3
VM
IFPWR
2
LOGIC BOARD 03
F1
ICP-N25
<01-F4>
+ C62
C13
Carriage Motor
Driver
VCC
1
0.1mF,50V
VCC
R83
100,
1/16W
IFD[0....7]
CNIF (for Interface)
R169
R161
R165
R162
R164
R163
R160
0.1mF
R166
3
D2
U5
FCN-684J036-L/U#
<01-E6>
FB32
BLM11A601S
2
3
4
5
6
7
8
9
D3
3
10 OHM,1/16W
IFD0 R175
Q4
FAIL3M
BLM11A601S
FB50
IFD2 R177
3
1
5
BLM11A601S
FB49
IFD3 R178
2
4
IFD1 R176
1
R93
1K,
1/16W,
1%
HZM6.8FA
1
D1
D2
D3
D4
D5
D6
D7
D8
CRAP
<01-F4>
CRA0
<01-F4>
CRA1
<01-F4>
16
20
17
CRBP
CRB0
CRB1
10
8
9
<01-F4>
<01-F4>
<01-F4>
R41
1.5K,
1/16W,
1%
STB
FB46
3
4
1
IFD6 R181
IFD7 R182
BLM11A601S
FB45
5
HZM6.8FA
<01-F6>
<01-E6>
<01-F6>
BUSY
ACK
PE
R85
1K,1/16W
FB37
1
SLCT
<01-F6>
FAULT
SLIN
<01-D7>
R185
FB38
FB39
10 OHM,1/16W
R187
C73
470PF
R188
FB40
R189
AFXT
FB41
C74
470PF
FB42
R84
BLM11A601S
3
18 +5V
35 +5V PU
19 STB -GND
20 D1-GND
21 D2-GND
22 D3-GND
23 D4-GND
24 D5-GND
25 D6-GND
26 D7-GND
27 D8-GND
28
29 ACK-GND
BUSY-GND
30 INT-GND
33 S-GND
16 S-GND
17 F-GND
HZM6.8FA
BLM11A601S
BLM11A601S
BLM11A601S
BLM11A601S
2
3
1
5
4
1K,1/16W
C14
4
R53 1 OHM,1/4W,1%
R57 1 OHM,1/4W,1%
E
R52
RC2
SENSE2
GND
GND
GND
GND
3
1K,1/16W
R55 1 OHM,1/4W,1%
19
18
R4
2K,
1/16W,
1%
LFAP
<01-F5>
LFA0
<01-F5>
LFA1
<01-F6>
LFBP
<01-F6>
LFB0
<01-F6>
<01-F6> LFB1
13
15
11
16
20
17
10
8
9
14
C65
470pF
U9
470pF
R51
56K,
1/16W
VSS
VREF1
VREF2
PHASE
I01
I11
6
7
VS
OUT1A
OUT1B
OUT2A
24
1
2
RC1
23
COMP2
RC2
SENSE2
GND
GND
GND
GND
C80
C81
Paper Feed
Motor
APPROX.
2.7Ω/phase
D
C82
1000PF 1000PF 1000PF 1000PF
5
22
SENSE1
C79
21
OUT2B
PHASE2
I02
COMP1
I12
R50
56K,
1/16W
12
C66
J3
CON4
LFA+ 1
LFA– 2
LFB+ 3
LFB– 4
C63
R44
1K, 1/16W
C64
4
R45
3
R48 10HM,1/4W
820PF
R46 10HM,1/4W
R49 10HM,1/4W
C
820PF
1K, 1/16W
R47 10HM,1/4W
19
18
L6219
HZM6.8FA
10 OHM,
1/16W
OPTIONAL
DO NOT INSTALL
FB43
BLM11A601S
C75
470PF
R72
R168
R167
R170
R171
R172
C84
R173
INT
R174
<01-D7>
0.1mF
D6
R190
<01-E7>
VCC
R54
1.8K,
1/16W,
1%
5
23
R56 1 OHM,1/4W,1%
820PF
CNLF
VCC
4
R184
R186
<01-F6>
BLM11A601S
D5
R42
Paper Feed
Motor Driver
C12
2
10 OHM,1/16W
R183
C11
22
SENSE1
APPROX.10.5 Ω/
phase
L6219
BLM11A601S
FB33
BLM11A601S
FB36
1K,1/16W
1
2
3
4
F2
ICP-N25
ZD12
RD6.8SB
R6
5
COMP2
6
7
R92
56K,
1/16W
470pF
BLM11A601S
FB44
<01-E7>
BUSY
ACK
PE
SLCT
FAULT
SELIN
AFXT
INT
15 N.C.
34 N.C.
BLM11A601S
FB47
IFD5 R180
STB
C72
470PF
11
10
12
13
32
36
14
31
D4
2
2
OUT2A
820PF
C36
10 OHM,1/16W
IFD4 R179
CRA+
CRA–
CRB+
CRB–
21
OUT1B
OUT2B
PHASE2
I02
COMP1
I12
12
BLM11A601S
1
OUT1A
R58
56K,
1/16W
470pF
CNCR
J2
CON4 Carriage Motor
24
VS
PHASE
I01
I11
RC1
BLM11A601S
FB48
VSS
VREF1
VREF2
14
C15
F
U5
13
15
11
VCC
3.3K,1/16W
RB4
2
100mF,35V
C10
Q7
FN1A4P
2
1
VHPWR
C87
1000PF
1K,1/16W
<01-F4>
B
1000PF
C71
3.3K,1/16W
CNPS
C48
+
100mF, 1000PF
35V
ZD3
RD6.2SB2
VCC
J4
CON8
R88
390 OHM,1/10W
GND
VHPWR
VCCGND
VCC(+5V)
VHGND
VM(+24V)
VHGND
VH(+24V)
FB35
BLM11A601S
R89
3.3K,1/16W
FB34
BLM11A601S
8
7
6
5
4
3
2
1
ZD1
VM
RD36EB
A
R86 0OHM,1/16W
R87 0OHM,1/16W
ZD2
VH
RD36EB
5-41
The printing paper contains
70% waste paper.
PRINTED IN JAPAN (IMPRIME AU JAPON)
CANON INC.