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C9402 (bizhub 958/808)
Contents
| Trouble type | C9402: Exposure LED lighting abnormally |
| Rank | B |
| Trouble detection condition | • The output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment. • The wrong model of firmware is detected in the MFP board when the main power switch is turned ON. • The machine type information (Machine, Type) registered to the machine differs from the actual machine type. |
| Trouble isolation | Scanner |
| Relevant electrical parts | • LED exposure unit • Flat cable (LED exposure unit) • CCD board (CCDB) • Scanner drive board (SCDB) • MFP board (MFPB) |
Procedure
- Check the machine type information registered and reenter as necessary. For details the machine information, see Procedure.
- Correct the harness connection between SCDB CN3-LU201 if faulty.
- Correct the harness connection between SCDB CN2-MFPB CN1E if faulty.
- Correct the harness connection between CCDB PJ3-MFPB CN9 if faulty.
- Replace the LED exposure unit. (Part# A61FM31100)
- Replace the CCD unit. (Part# A795R71000)
- Replace SCDB (Part# A796H01A00)
- 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.3.14.1 (Link to the Field Service Manual)