Olivetti d-color MF651, Service Manual, Page: 770 / 1053

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