19. Image quality problem
Field Service Ver. 1.0 Jun. 2008
346
T
roubleshooting
19.3.23
Printer monocolor: colored spots
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C524DA
AA
Step
Section
Check item
Result
Action
1
Imaging unit
Developing bias contact terminal
makes good connection.
NO
Clean contact terminal and
check terminal position.
2
The surface of the PC drum is
scratched.
YES
Change imaging unit.
3
Dirty on the outside.
YES
Clean.
d-Color MF201
Service Manual Y109660-1