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C392B (bizhub C287/C227)
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Contents
| Trouble type | C392B: Fusing sensor wire breaks detection (Center of the heating roller) |
| Rank | A |
| Trouble detection condition | The difference between the temperature corrected by the heating roller thermistor/1 (TH1) and the temperature detected by the heating roller thermistor/2 (TH2) exceeds a predetermined value. |
| Trouble isolation | – |
| Relevant electrical parts | -Fusing unit -Heating roller thermistor/1 (TH1) -Heating roller thermistor/2 (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 connector between the fusing unit-relay CN4-MFPB CN16E for proper connection and correct as necessary.
- Replace the fusing unit. (Part# A797R70211)
- Replace MFPB. (Part# A797H02118)
K.3.10.8 (Link to the Field Service Manual)