How Can We Help?
C4501 (bizhub 558/458)
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. (558 Part# A9HGR70400 / 458 Part# A9HHR70000)
- Replace MFPB. (558 Part# A9HGH02102 / 458 Part# A9HHH02102)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.15.3 (Link to the Field Service Manual)