Konica Minolta bizhub C200 Service Manual page 441

19. Image quality problem
19.3.23 Printer monocolor: colored spots
A. Typical faulty images
B. Troubleshooting procedure
Step Section
Imaging unit
1
2
3
400
AA AA
Check item
Developing bias contact terminal
makes good connection.
The surface of the PC drum is
scratched.
Dirty on the outside.
Field Service Ver. 2.0 Dec. 2008
Result Action
NO Clean contact terminal and
check terminal position.
YES Change imaging unit.
YES Clean.
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