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C3926 (bizhub C759/C659)
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Contents
| Trouble type | C3926: Fusing sensor wire breaks detection (Center of the heating roller) |
| Rank | A |
| Trouble detection condition | The maximum value and minimum value of detected temperature of the heating roller temperature sensor/3 (TEMS3) is compared after a lapse of given time from starting of warm up and the gap between the value of maximum and minimum is below a given temperature. |
| Trouble isolation | – |
| Relevant electrical parts | -Fusing unit -Heating roller temperature sensor/3 (TEMS3) -MFP board (MFPB) |
Procedure
- Check the fusing unit for correct installation (whether it is secured in position).
- Check the open/close operation of the upper right door.
- Check the connector between TEMS1, TEMS2, TEMS3-relay CN512-MFPB CN31E for proper connection and correct as necessary.
- Replace the fusing unit. (Part# A8JER70222)
- MFPB F3E conduction check
- Replace MFPB. (Part# A8JEH02002)
L.3.10.13 (Link to the Field Service Manual)