Konica Minolta bizhub C360 Service Manual page 772

Field Service Ver. 2.1 Feb. 2012
23.3.13 Scanner system: abnormal image
A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Cable connecting
scanner and
printer
2 MFP board
(MFPB)
3 MFP board
(MFPB)
4 Test Mode
[Service Mode]
5 MFP board
(MFPB)
6 Printer control
board (PRCB)
PH relay board
(PHREYB)
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
Check item
Connector is connected properly
with no pins bent.
Connectors on the MFP 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.
Check the connection of connec-
tors, harness, and flat cables
between PRCB and PHREYB, and
correct if necessary.
23. IMAGE QUALITY PROBLEM
ABCDE
Data on
previous
ABCDE
page
ABCDE
Data on
AA
current
page
Result Action
NO Reconnect.
NO Reconnect.
NO Reinstall the memory.
NO Change I/F connection cable.
NO Change MFP board.
NO Change printer control board.
Change PH relay board.
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