C3926 (bizhub 368e/308e)

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Trouble typeC3926: Fusing sensor wire breaks detection (Center of the heating roller)
RankA
Trouble detection conditionAfter a predetermined period of time after the warm-up stage is started, the heating roller thermistor/1 (TH1) voltage does not decrease by predetermined steps (temperature rise) within a predetermined period of time.
Trouble isolation–
Relevant electrical parts• Fusing unit 
• Heating roller thermistor/2 (TH2)
• MFP board (MFPB)

 Procedure

  1. Check the fusing unit for correct installation (whether it is secured in position).
  2. Check the open/close operation of the right door.
  3. Check the fusing unit and MFPB for proper connection and correct or change as necessary.
  4. Replace the fusing unit. (Part# A79JR71033)
  5. Replace MFPB. (Part# AA6VH02101)

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

L.3.11.8 (Link to the Field Service Manual)