Ir System: Abnormal Image - Konica Minolta bizhub C350 Service Manual

Image quality problem
4.3.13

IR System: abnormal image

A. Typical Faulty Images
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B. Troubleshooting Procedure
Step Section
Cable connecting
1 Scanner and
printer
Image Processing
2
Board (PWB-C)
MFP Control
3 Board (PWB-
MFP)
Test Print
4 (Tech.Rep.Mode)
Image Processing
5 Board (PWB-C)
MFP Control
6 Board (PWB-
MFP)
4-68
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
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Check Item
Connector is connected properly
with no pins bent.
Connectors on the Image Process-
ing Board are connected properly.
Data on previous page is mixed
with data on current page.
The problem is eliminated as
checked with the image on a test
pattern produced.
The problem is eliminated after the
interface connection cable has
been changed.
The problem has been eliminated
through the checks of steps up to 7.
bizhub C350 Field Service Ver2.0 Sep. 2004
ABCDE
ABCDE Data on previous page
ABCDE
AA
Data on current page
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Result
NO Reconnect.
NO Reconnect.
NO Reinstall expanded memory.
NO Change interface connection
cable.
NO Change Image Processing
Board.
NO Change MFP Control Board.
Action