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

Field Service Ver. 1.0 Aug. 2005
21.3.11

Printer System: Black streaks or bands

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
1 Paper Path
2 Imaging Unit
3 Fusing Unit
4 -
EDNord - Istedgade 37A - 9000 Aalborg - telefon 96333500
4036fs4023c0
Check Item
Toner is on the paper path.
Photo Conductor is dirty.
Fusing Rollers are dirty or scratched.
The problem has been eliminated after
performing step 3.
21. Image quality problem
4036fs4024c0
Result Action
YES Clean.
YES Change Photo Conductor
Unit.
YES Change Photo Conductor
Unit.
NO Change Photo Conductor
Unit.
Change Developing Unit.
Change Mechanical Con-
trol Board.
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