Service manual

Chapter 13
13-12
T-13-26
T-13-27
T-13-28
T-13-29
T-13-30
General conditions
4) Turn off the machine while an image is printing on the
photosensitive drum. Is the toner on the drum surface developed?
YE
S:
Go through steps 11) to 13).
NO:
Go through steps 5) to 10).
Cartridge
5) Take out the cartridge, and rock it lightly 5 to 6 times. Is the
problem corrected?
YES: End.
High-voltage contact (between cartridge and high-voltage spring)
6) Is the high-voltage spring used to supply high voltage to the
cartridge soiled? (Remove the cartridge to check.)
YES: Clean it.
High-voltage contact (between high-voltage spring and DC controller PCB;
J205, J207)
7) Is the connection between the high-voltage spring and the DC
controller PCB (J205, J207) normal?
NO: Correct it. If it cannot be corrected, replace the faulty part.
Connector
8) Is the connection of the following connectors normal: J201 and
J204 on the DC controller PCB; J303, J304, J312, and J316 on the
image processor PCB; J3122 and J801 in the laser scanner unit?