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22. IMAGE QUALITY PROBLEM
Field Service Ver. 2.0 Jul. 2009
874
TROUBLESHOOTING
22.3.12
Scanner system: blank copy, black copy
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C518DA
Blank copy
Black copy
Step
Section
Check item
Result
Action
1
Cable connecting
scanner and
printer
Connector is connected properly
with no pins bent.
NO
Reconnect.
2
Image process-
ing board (IPB)
Connectors on the image pro-
cessing board are connected
properly.
NO
Reconnect.
3
CCD Unit
Connectors of the CCD unit are
connected properly.
NO
Reconnect.
4
Test Mode
[Service Mode]
The problem is eliminated as
checked with the image on a test
pattern produced.
NO
Change I/F connection cable.
5
MFP board
(MFPB)
The problem is eliminated after
the I/F connection cable has been
changed.
NO
Change MFP board.
Service Manual Y110571-1
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...
Страница 1053: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2009 1ST EDITION 1053053 Y110571 1...