Scanner System: Blank Copy, Black Copy - Konica Minolta bizhub C250 Service Manual

18. Image quality problem
18.3.12

Scanner System: blank copy, black copy

A. Typical Faulty Images
B. Troubleshooting Procedure
Step Section
Cable connecting
1
Scanner and printer
Image Processing
2
Board (PWB-C)
CCD Unit
3
Test Mode
4 [Service Mode]
Image Processing
5 Board (PWB-C)
488
Blank copy
4036fs4038c0
Check Item
Connector is connected properly
with no pins bent.
Connectors on the Image Process-
ing Board are connected properly.
Connectors of the CCD Unit are
connected properly.
The problem is eliminated as
checked with the image on a test
pattern produced.
The problem is eliminated after the
I/F connection cable has been
changed.
Field Service Ver. 3.0 Aug. 2006
Black copy
4036fs4039c0
Result
NO Reconnect.
NO Reconnect.
NO Reconnect.
NO Change I/F connection
cable.
NO Change Image Process-
ing Board.
Action