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C4101(bizhub 958/808)

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 Contents

Trouble typeC4101:
• Polygon motor rotation trouble
• PH unit for incorrect marketing area
RankB
Trouble detection condition• The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor.
• Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
• The PH unit for incorrect marketing area is installed.
Trouble isolation–
Relevant electrical parts• PH unit
• PH relay board (PHRYB)
• MFP board (MFPB)

 Procedure

  1. Check the type of the installed PH unit and replace it if it is a wrong one.
  2. Check the connector between the PH unit-PHRYB CN3 for proper connection and correct as necessary.
  3. Replace the PH unit. (Part# A796R70500)
  4. PHRYB F3 conduction check.
  5. Replace PHRYB. (Part# A796H00300)
  6. Replace MFPB. (Part# A796H02003)

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

K.3.10.3 (Link to the Field Service Manual)

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