Printer System: White Streaks Or Bands - Konica Minolta bizhub 250 Service Manual

Field Service Ver. 1.0 Aug. 2005
21.3.13

Printer System: White streaks or bands

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
1 Transfer Roller
2 Imaging Unit
3 Fusing Unit
4 PH Unit
5 -
EDNord - Istedgade 37A - 9000 Aalborg - telefon 96333500
4036fs4021c0
Check Item
Transfer Roller is dented or scratched.
Photo Conductor is dirty.
Fusing Rollers are dirty or scratched.
Window glass of the PH Unit is dirty.
The problem has been eliminated after
performing step 4.
21. Image quality problem
4036fs4022c0
Result Action
YES Change Transfer Roller
Unit.
YES Change Photo Conductor
Unit.
YES Change Fusing Unit.
YES Clean.
NO Change Photo Conductor
Unit.
Change Developing Unit.
Change Mechanical Con-
trol Board.
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