C6754 (bizhub 958/808)
Contents
| Trouble type | C6754: CIS clamp adjustment failure |
| Rank | B |
| Trouble detection condition | After the gain adjustment is performed at the start-up, the CIS clamp adjustment value is too high or too low. |
| Trouble isolation | Scanner |
| Relevant electrical parts | • CIS module (CIS) • Dual scan image processing board (DSIPB) • DF power supply (DFPU) • MFP board (MFPB) |
Procedure
- Correct the harness connection between CIS J101-DSIPB CN2 if faulty.
- Correct the harness connection between CIS J102-DFPU CN2 if faulty.
- Check for possible extraneous light and correct as necessary.
- Clean the back side reading glass and the shading sheet if dirty.
- Replace CIS. (Part# A782R70200)
- Replace DSIPB. (Part# A796H02A00)
- DFPU ICP1 conduction check.
- Replace DFPU. (Part# A3CKH00200)
- MFPB F3E conduction check
- Replace MFPB. (Part# A796H02003)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.12.9 (Link to the Field Service Manual)