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

bizhub C350 Field Service Ver. 2.0 April 2004
4.3.21

Printer Monocolor: colored spots

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