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18. MALFUNCTION CODE
Field Service Ver. 2.0 Jul. 2009
710
TROUBLESHOOTING
18.3 Solution
18.3.1
S-1: CCD gain adjustment failure
18.3.2
D-1: Split line detect
18.3.3
D-2: ADF read guide trouble
Relevant parts
Exposure unit
CCD board (CCDB)
MFP board (MFPB)
Step
Action
1
Correct the harness connection between CCDB and MFPB if faulty.
2
Check for possible extraneous light and correct as necessary.
3
Clean the lens, mirrors, CCD surface, and shading sheet if dirty.
4
Correct reflective mirror of the scanner if faulty, or change scanner.
5
Change CCD sensor unit.
6
Change MFPB.
Relevant parts
Original glass moving unit
Original glass position control board (OGPCB)
Printer control board (PRCB)
Step
Action
1
Wipe clean the glass surface of the original glass moving unit.
2
Correct the harness connection between OGPCB and PRCB if faulty.
3
Change original glass moving unit.
4
Change OGPCB.
5
Change PRCB.
Relevant parts
ADF scanning guide
Step
Action
1
Wipe clean the surface of the ADF scanning guide with a soft cloth, if it is dirty.
See P.12 of the DF-618/SP-501 service manual.
Service Manual Y110571-1
Содержание d-color MF651
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