C4101 (bizhub 750i)
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Contents
| Trouble type | C4101: Polygon motor rotation trouble |
| Rank | B |
| Trouble detection condition | -The polygon motor fails to turn stably even after the lapse of a given period of time after activating and changing rotation speed the polygon motor. -Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating. |
| Trouble isolation | – |
| Relevant electrical parts | -PH unit -Expansion control board (EXCB) -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Check the connector between the PH unit-relay CN306-EXCB CN10EX 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.
- Replace the PH unit. (Part# ACV7R70100)
- Replace EXCB. (Part# AC74H00501)
- Replace CPUB. (Part# ACV7H02P02)
- Replace BASEB. (Part# ACV7H02101)