Printer Monocolor: Colored Spots - Konica Minolta bizhub C350 Service Manual

bizhub C350 Field Service Ver2.0 Sep. 2004
4.3.21

Printer Monocolor: colored spots

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
Imaging Unit
1
2
3
4
Colored spots
AA
Check Item
Developing bias contact terminal
makes good connection.
The surface of the PC Drum is
scratched.
Dirty on the outside.
The problem has been eliminated
through the checks of steps up to 3.
4036fs4052c0
Result
NO Clean contact terminal and
check terminal position.
YES Change Imaging Unit.
YES Clean.
NO Change Imaging Unit.
Image quality problem
Action
4-79