Download SERVICE MANUAL

3.
PAPER FEEDING PROBLEMS
Problems related to paper feeding are end user recoverable if following the User Check
items. If the same problem occurs again, follow each procedure in the order of the number
described in the Step column in the tables below.
3.1
No Feeding
Step
Cause
Result
Remedy
1
Edge actuator
catching in some
position
Does the edge actuator
move smoothly?
No
Re-assemble the edge
actuator and ensure
smooth operation.
2
Roller holder
ASSY catching in
some position
Does the roller holder
ASSY move smoothly?
Yes
Re-assemble the roller
holder ASSY and ensure
smooth operation.
Registration front
sensor failure
Is the problem solved
after replacing the
registration front sensor
PCB ASSY?
Paper feeding kit
failure
Is the surface of the
separation pad or the
pickup roller dirty or worn
out?
3
4
Yes
1) Clean the surface of
the separation pad or
pickup roller.
2) Replace the separation
pad or pickup roller.
Replace the paper tray.
Pressure plate
gear damage
6
T1 solenoid failure Does the T1 solenoid
work correctly?
7
T1 solenoid Circuit
of the high-voltage
power supply PCB
broken
Is the problem solved
after replacing the highvoltage power supply
PCB ASSY?
Yes
Main PCB failure
Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
Is the problem solved
after replacing the drive
sub ASSY?
Yes
Replace the drive sub
ASSY.
Main motor failure
9
Is the pressure plate gear
damaged?
Yes
Replace the registration
front sensor PCB ASSY.
5
8
3.2
Check
Yes
No
Replace the T1 solenoid
Replace the high-voltage
power supply PCB ASSY.
Double Feeding
Step
1
Cause
Paper feeding kit
is abrasion
Check
Result
Is the surface of the
separation pad worn out?
Yes
1-23
Remedy
Replace the paper
feeding kit.
Confidential