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Field Service Ver. 2.0 Jul. 2009
22. IMAGE QUALITY PROBLEM
875
TROUBLESHOOTING
22.3.13
Scanner system: abnormal image
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C519DA
ABCDE
ABCDE
ABCDE
ABCDE
ABCDE
AA
ABCDE
ABCDE
ABCDE
Data on
previous
page
Data on
current
page
Step
Section
Check item
Result
Action
1
Cable connecting
scanner and
printer
Connector is connected properly
with no pins bent.
NO
Reconnect.
2
MFP board
(MFPB)
Connectors on the MFP board are
connected properly.
NO
Reconnect.
3
MFP board
(MFPB)
Data on previous page is mixed
with data on current page.
NO
Reinstall the memory.
4
Test Mode
[Service Mode]
The problem is eliminated as
checked with the image on a test
pattern produced.
NO
Change interface connection
cable.
5
MFP board
(MFPB)
The problem is eliminated after the
interface connection cable has
been changed.
NO
Change MFP board.
6
Printer control
board (PRCB)
PH relay board
(REYB/PH)
Check the connection of connec-
tors, harness, and flat cables
between PRCB and REYB/PH, and
correct if necessary.
NO
Change printer control board.
Change PH relay board.
Y110571-1 Service Manual
Содержание d-color MF651
Страница 1: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 24: ...MEASURES TO TAKE IN CASE OF AN ACCIDENT S 22 Blank Page...
Страница 27: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 511: ...Field Service Ver 2 0 Jul 2009 10 UTILITY 451 ADJUSTMENT SETTING Blank Page Y110571 1 Service Manual...
Страница 716: ...16 MECHANICAL ADJUSTMENT Field Service Ver 2 0 Jul 2009 656 ADJUSTMENT SETTING Blank Page Service Manual Y110571 1...
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