Service manual

2-53
Confidential
 Paper jams in the manual feed slot
<User Check>
• Check that the paper is set in the manual feed slot correctly.
• Flip over the paper in the manual feed slot or rotate the paper 180°.
• Adjust the paper guide according to the paper size.
• Check that multiple sheets of paper are not set.
• Check that the thickness of the paper is 60 to 163g/m
2
.
Step Cause Remedy
1
Foreign object around the
manual feed slot
Remove the foreign object.
2
Connection failure of the
registration front/rear sensor
PCB harness
Reconnect the registration front/rear sensor
PCB harness.
3
Registration front actuator
coming off
Reattach the registration front actuator.
4
Connection failure of the
registration clutch harness
Reconnect the registration clutch harness.
5
Connection failure of the HVPS
flat cable
Reconnect the HVPS flat cable.
6
HVPS flat cable breakage Replace the HVPS flat cable.
7
Registration front sensor failure Replace the registration front/rear actuator
holder ASSY.
8
Registration clutch failure Replace the registration clutch.
9
Main motor failure Replace the main motor.
10
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
11
Damaged gears in the feeding
system
Replace the main frame L ASSY.
12
Damaged fuser unit Replace the fuser unit.
13
Main PCB failure Replace the main PCB ASSY.