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C3825, C3826 (bizhub 4700i)
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Contents
| Trouble type | C3825: Fusing abnormally low temperature detection (Main of the heating roller) C3826: Fusing abnormally low temperature detection (Center of the heating roller) |
| Rank | A |
| Trouble detection condition | C3825: The heating roller temperature sensor (TEMS) continues to detect a temperature lower than a predetermined one for a predetermined period of time. C3826: The heating roller thermistor/Ctr (TH2) continues to detect a temperature lower than a predetermined one for a predetermined period of time. |
| Trouble isolation | – |
| Relevant electrical parts | -Fusing unit -C3825: Heating roller temperature sensor (TEMS) -C3826: Heating roller thermistor/Ctr (TH2) -DC power supply (DCPS) -CPU board (CPUB) -Base board (BASEB) |
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 CN3-BASEB CN10E for proper connection and correct as necessary.
- Check the connector between the fusing unit-relay CN2-DCPS CN2 for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace the fusing unit. (Part# ACT9R70100)
- Replace CPUB. (Part# ACTAH01003)
- Replace BASEB. (Part# ACTAH02014)
- DCPS FU181 conduction check
- Replace DCPS. (Part# AAJRR70600)