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C2558 (bizhub 658e/558e/458e)
Contents
Trouble type | C2558: Abnormally high toner density detected black TCR sensor |
Rank | B |
Trouble detection condition | The TC ratio of the toner determined by the toner replenishment control is detected to be the predetermined value or over for consecutive times. |
Trouble isolation | – |
Relevant electrical parts | • Developing unit • Toner cartridge • Front side board (FRB) • MFP board (MFPB) |
Procedure
- Reinstall the developing unit.
- Reinstall the toner cartridge.
- 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, CN5E for proper connection and correct as necessary.
- Replace the developing unit. (Part# A9C803D)
- Replace FRB. (Part# A9HJH00501)
- Replace MFPB. (658e/558e Part# AA6RH02103 / 458e Part# AA6UH02101)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
L.3.10.5 (Link to the Field Service Manual)