C9403 (bizhub 958/808)
Contents
| Trouble type | C9403: CIS LED lighting failure |
| Rank | B |
| Trouble detection condition | At the CIS gain adjustment, the machine detected that the output of the CIS LED is lower than the specified value. |
| Trouble isolation | Scanner |
| Relevant electrical parts | • CIS module (CIS) • DF power supply (DFPU) • Dual scan image processing board (DSIPB) • 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.
- Replace CIS. (Part# A782R70200)
- DFPU ICP1 conduction check.
- Replace DFPU. (Part# A3CKH00200)
- Replace DSIPB. (Part# A796H02A00)
- 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.3.14.2 (Link to the Field Service Manual)