Image Reading System: Uneven Image - Konica Minolta bizhub 160 Service Manual

Field Service Ver. 1.0 Apr. 2005
22.4.7

Image Reading System: Uneven Image

A. Troubleshooting Procedures
Step
1 Is the Scanner Motor drive being transmitted?
2 Is the harness of the Exposure Lamp catch-
ing?
3 Is there enough slack in the Belt?
4 Are the Scanner Rails scratched or dirty?
5 Are there no bent connector pins on the cables
connecting the control boards, are all connec-
tors correctly plugged in, and are no cables
broken?
6 The problem has been eliminated after per-
forming step 5.
<Sample of Image Quality Problem>
Check
22. Image quality problem
4011T528AA
Result Action
NO Correct drive coupling mechanisms.
Replace it.
YES Correct it.
NO Correct it.
Replace the Belt.
YES Clean them.
NO Correctly plug in the connectors.
Replace connection cables.
NO Replace the Scanner Assy.
Replace the IR Unit.
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