■Faulty registration

User Check

•Check that the appropriate media type is selected in the printer driver.

Step

Cause

Check

Result

Remedy

 

 

 

 

 

 

 

 

 

 

 

Registration rear

Does the registration

 

Re-assemble the

1

actuator catching

rear actuator move

No

registration rear actuator.

 

on some position

smoothly?

 

 

 

 

 

 

 

■Dark

User Check

•Check the machine's environment. High temperature and high humidity conditions can cause this problem.

•Replace the drum unit with a new one.

•Replace the toner cartridge with a new one.

Step

Cause

Check

Result

Remedy

 

 

 

 

 

 

 

 

 

 

 

HVPS PCB

Is the problem solved

 

Replace the HVPS PCB

1

failure

after replacing the

Yes

ASSY.

 

 

HVPS PCB ASSY?

 

 

 

 

 

 

 

 

Main PCB failure

Is the problem solved

 

Replace the main PCB

2

 

after replacing the main

Yes

ASSY.

 

 

PCB ASSY?

 

 

 

 

 

 

 

1-23

Confidential