C6755 (bizhub 754e/654e)
Contents
| Trouble type | CIS gain adjustment failure |
| Trouble code | C6755 |
| Rank | B |
| Detection timing | After the gain adjustment is performed at the start-up, the peak value of the output data is lower than a given value. |
| Trouble isolation | Scanner |
| Relevant electrical parts | • CIS module (CIS) • Dual scan image processing board (DSIPB) • DF power supply (DFPU) • MFP board (MFPB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Correct the harness connection between CIS and DSIPB if faulty. | – | – |
| 2 | Correct the harness connection between CIS and DFPU if faulty. | – | – |
| 3 | Check for possible extraneous light and correct as necessary. | – | – |
| 4 | Clean the back side reading glass and the shading sheet if dirty. | – | – |
| 5 | Replace CISCIS (Part# A2X0R70M00) | – | – |
| 6 | Replace DSIPBDSIPB (Part# A5C1H02A01) | – | – |
| 7 | Replace DFPUDFPU (Part# A3CKH00200) | – | – |
| 8 | Replace MFPBMFPB (Part# A55VH02304) | – | – |
- Link to the layout drawings for related parts by each trouble code (S.97. C6754, C6755)
Document Information ID D0001104810 Revise ID R000003
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.11.9 (Link to the Field Service Manual)