Scanner System: Blank Copy, Black Copy - Konica Minolta bizhub C650 Service Manual

Field Service Ver. 8.0 Jun. 2008
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 process-
2 ing board (IPB)
CCD Unit
3
Test Mode
4 [Service Mode]
Image process-
5 ing board (IPB)
Blank copy
4036fs4038c0
Check item
Connector is connected properly
with no pins bent.
Connectors on the image pro-
cessing 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.
18. Image quality problem
Black copy
4036fs4039c0
Result
NO Reconnect.
NO Reconnect.
NO Reconnect.
NO Change I/F connection cable.
NO Change image processing board.
Action
705