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C4501 (bizhub 658e/558e/458e)
Contents
Trouble type | C4501: Laser malfunction |
Rank | B |
Trouble detection condition | • SOS signal is not detected even after the lapse of a given period of time after starting the laser output. • SOS signal is not detected for a given period of time during printing or IDC sensor adjustment. |
Trouble isolation | – |
Relevant electrical parts | • PH unit • MFP board (MFPB) |
Procedure
- Check the connector between the PH unit-relay CN63-MFPB CN20E for proper connection and correct as necessary.
- Replace the PH unit. (Part# AA6RR70300)
- 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.3.14.3 (Link to the Field Service Manual)