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C3101, C3103 (bizhub C750i)
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Contents
Trouble type | C3101: Pressure roller pressure failure C3103: Pressure roller release failure |
Rank | B |
Trouble detection condition | C3101: The fusing pressure home sensor (PS38) is not turned ON (blocked) even after the lapse of a predetermined period of time after the fusing pressure motor (M11) has started rotating during pressure by the pressure roller. C3103: The fusing pressure home sensor (PS38) is not turned OFF (unblocked) even after the lapse of a predetermined period of time after the fusing pressure motor (M11) has started rotating during retraction of the pressure roller. |
Trouble isolation | – |
Relevant electrical parts | -Fusing unitFusing pressure motor (M11) -Fusing pressure home sensor (PS38) -Expansion control board (EXCB) -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check the connector between M11-relay CN112-EXCB CN14EX for proper connection and correct as necessary.
- Check the connector between the fusing unit-relay CN95, CN96-BASEB CN4E for proper connection and correct as necessary.
- Check the connector between EXCB CN2EX-BASEB CN12E for proper connection and correct as necessary.
- Check CPUB for proper installation and correct as necessary.
- PS38 I/O check, sensor check
- Control signal: BASEB CN4E-3 (ON)
- Location of electrical component: 7-C
- M11 load check
- Check code: 45
- Multi code: 7, 8, 9
- Control signal: EXCB CN14EX-11 to 14
- Location of electrical component: 18-P
- Replace M11. (Part# A161M10300)
- Replace the fusing unit. (Part# AA7NR70200)
- Replace EXCB. (Part# AA7NH00500)
- Replace CPUB. (Part# ACKNH02P03)
- Replace BASEB. (Part# ACKNH02101)