C255C (bizhub 368e/308e)
Contents
| Trouble type | C255C: Black TCR sensor adjustment failure |
| Rank | B |
| Trouble detection condition | TCR sensor automatic adjustment does not function properly, failing to adjust to an appropriate value. |
| Trouble isolation | – |
| Relevant electrical parts | • Developing unit • Toner cartridge motor/K (M25) • Toner supply motor/K (M6) • Front side board (FRB) • MFP board (MFPB) |
Procedure
- Reinstall the developing unit.
- Check the connector between the developing unit-FRB CN13 for proper connection and correct as necessary.
- Check the connector between FRB CN1, CN3-MFPB CN4E, CN11E for proper connection and correct as necessary.
- M25 operation check
- Control signal: MFPB CN30E-1 to 4
- Location of electrical component: 15 to 16-C
- M6 operation check
- Control signal: MFPB CN30E-5 to 8
- Location of electrical component: 16 to 17-C
- Replace the developing unit. (Part# A9C803D)
- Replace FRB. (Part# A9HJH00501)
- Replace MFPB. (Part# AA6VH02101)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
L.3.9.5 (Link to the Field Service Manual)