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image-quality Troubleshooting
Image-Quality Troubleshooting
The following table provides examples and descriptions, possible causes, and the solutions for
troubleshooting various image or printing defects that may be observed in the Phaser 3500
Laser Printer.
Image Defect
Possible Causes
No Image/Blank Prints
■
Sealing tape or shipping
restraint was not removed
from the cartridge.
1. Ensure that sealing tape and
shipping restraint have been
removed.
■
Low or no toner
2. Verify Print Cartridge ground.
■
Defective ground to the
Print Cartridge or OPC
Drum
3. Verify continuity between the
cartridge ground and frame.
■
Malfunctioning solenoid or
drive.
■
Main Board
■
Incorrect high-voltage
output from the Power
Supply Board.
Prints have no visible image.
s3500-043
Light Prints
All areas of the print are light with
no ghosting.
Solutions
4. Ensure the feed solenoid is
functioning properly.
5. Replace in the following
order:
■
Print Cartridge
■
Main Board
■
Power Supply Board
■
Laser Assembly
■
Multiple sheet feeding
■
Unsupported Media (paper) 1. Verify paper meets printer
specifications. Print 20 to
Seal tape or shipping
30 pages using the
restraint was not removed
recommended paper.
from the cartridge.
■
■
Incorrect Control Panel
settings
2. Verify image-quality menu is
not set to “draft.”
■
Low toner
■
Transfer Roller
3. Ensure that the sealing tape
and the shipping restraint
have been removed.
■
Laser contamination or
obstruction
■
Incorrect high-voltage
output
■
Low ambient temperature
(<10º C)
4. Verify low toner warning is not
displayed on control panel.
Remove the Print Cartridge
and shake, reinstall or
replace.
5. Inspect the Transfer Roller for
contamination and verify highvoltage contacts. Replace as
required.
6. Inspect the Laser assembly
for any obstructions; clean the
laser exit window.
7. Replace the Power Supply
Board.
Phaser® 3500 Laser Printer Service Manual
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