C4101 (bizhub 368/308)

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Trouble typeC4101: Polygon motor’s rotation trouble
RankB
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
• Front side board (FRB)
• MFP board (MFPB)

 Procedure

  1. Check the connector between the PH unit-FRB CN17 for proper connection and correct as necessary.
  2. Replace the PH unit. (Part# A9HJR70000)
  3. FRB fuse conduction check
  4. Replace FRB. (Part# A9HJH00501)
  5. Replace MFPB. (Part# A9HJH02102)

Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.

K.3.14.2 (Link to the Field Service Manual)