Printer System: Uneven Pitch - Konica Minolta bizhub 250 Service Manual

21. Image quality problem
21.3.18

Printer System: Uneven pitch

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
1 Imaging Unit
2 Developing
Section
3 Transport
Section
4 Fusing Section
5 Imaging Unit
6 PH Unit
7 -
270
EDNord - Istedgade 37A - 9000 Aalborg - telefon 96333500
Check Item
Developing Unit drive is being transmit-
ted.
Photo Conductor and Transfer Roller
drive is being transmitted.
Synchronizing Rollers Unit drive is
being transmitted.
Fusing Unit drive is being transmitted.
Ds Collar is dirty.
PH Unit is securely installed.
The problem has been eliminated after
performing step 6.
Field Service Ver. 1.0 Aug. 2005
4040F4C500DA
Result
NO Correct or change drive
coupling mechanism.
NO Correct or change drive
coupling mechanism.
NO Correct or change drive
coupling mechanism.
NO Correct or change drive
coupling mechanism.
YES Clean.
YES Correct.
NO Change Photo Conductor
Unit.
Change Developing Unit.
Change Mechanical Con-
trol Board.
Action