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C392B (bizhub C658/C558/C458)
Contents
| Trouble type | C392B: Fusing sensor wire breaks detection (Difference of temperature) |
| Rank | A |
| Trouble detection condition | The difference between the temperature corrected by the heating roller thermistor1 (TH1) and the temperature detected by the heating roller thermistor2 (TH2) exceeds a predetermined value. |
| Trouble isolation | – |
| Relevant electrical parts | • Fusing unit • Heating roller thermistor1 (TH1) • Heating roller thermistor2 (TH2) • MFP board (MFPB) |
Procedure
- Check the fusing unit for correct installation (whether it is secured in position).
- Check the open/close operation of the right door.
- Check the fusing unit-MFPB CN22E for proper connection and correct or change as necessary. (bizhub C658/C558)
- Check the fusing unit-MFPB CN12E for proper connection and correct or change as necessary. (bizhub C458)
- Replace the fusing unit. (bizhub C658/C558 Part# A79JR71066 / bizhub C458 Part# A79MR70222)
- Replace MFPB. (C458 Part# A79MH02102 / C558 or C658 Part # A79JH02102)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.14.11 (Link to the Field Service Manual)