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C3737 (bizhub 750i)
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Contents
Trouble type | C3737: Fusing abnormally high temperature detection hard protector (Center of the heating roller) |
Rank | A |
Trouble detection condition | C3737: An abnormally high temperature is detected on the hard protector circuit (center of the heating roller). |
Trouble isolation | – |
Relevant electrical parts | -Fusing unit -C3737: Heating roller temperature sensor (TEMS) -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# ACV7H02P02)
- Replace BASEB. (Part# ACV7H02101)