Printer 4-Color: Uneven Density In Sub Scan Direction - Konica Minolta bizhub C353 Service Manual

18. Image quality problem
18.3.29

Printer 4-color: uneven density in sub scan direction

A. Typical faulty images
B. Troubleshooting procedure
Step Section
Transfer belt unit Fingerprints, oil, or other foreign
1
2
3
Transfer roller
4
unit
5
6
590
Check item
matter is evident on the transfer
belt.
Transfer belt is dirty or scratched.
Terminal is dirty.
Image transfer roller is installed
properly.
Image transfer roller is dirty or
scratched.
The problem has been eliminated
through the checks of steps up to 5.
Field Service Ver. 3.0 Jan. 2008
Result Action
YES Clean.
YES Clean dirty belt with a soft cloth.
Change transfer belt unit if belt is
damaged.
YES Clean.
NO Reinstall.
YES Change transfer roller unit.
NO Change transfer belt unit.
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