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C392B (bizhub C368/C308/C258)

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Trouble typeC392B: Fusing sensor wire breaks detection (Difference of temperature)
RankA
Trouble detection conditionThe difference between the temperature corrected by the heating roller thermistor/1 (TH1) and the temperature detected by the heating roller thermistor/2 (TH2) exceeds a predetermined value.
Trouble isolation–
Relevant electrical parts• Fusing unit
• Heating roller thermistor/1 (TH1)
• 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# A161R71888)
  5. Replace MFPB. (Part# A7PUH02123)

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

K.3.13.10 (Link to the Field Service Manual)

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