C3825, C3826 (bizhub C750i)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
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) or C3826: Heating roller thermistor/Ctr (TH2) -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 CN95-BASEB CN4E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- Replace the fusing unit. (Part# AA7NR70200)
- Replace CPUB. (Part# ACKNH02P03)
- Replace BASEB. (Part# ACKNH02101)