4-Color: Uneven Density In Sub Scan Direction - Konica Minolta magicolor 7450 Service Manual

16. Image quality problem
16.3.15

4-Color: uneven density in sub scan direction

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
Transfer Belt
1
2
3
4 Transfer Roller
5
6
230
4036fs4043c0
Check Item
Fingerprints, oil, or other foreign
matter is evident on the Transfer
Belt.
Transfer Belt is dirty or scratched.
Terminal is dirty.
Transfer Roller is installed properly.
Transfer Roller is dirty or scratched. YES Change Transfer Roller Unit.
The problem has been eliminated
through the checks of steps up to 5.
Field Service Ver. 1.0 May 2006
4036fs4044c0
Result Action
YES Clean with specified solvent.
(See Maintenance.)
YES Clean dirty belt with a soft cloth.
Change Transfer Belt if belt is
damaged.
YES Clean.
NO Reinstall.
NO Change Transfer Belt.