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C3732 (bizhub 658e/558e/458e)

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Trouble typeC3732: Fusing abnormally high temperature detection hard protector (Edge of the heating roller) (bizhub 658e/558e)
RankA
Trouble detection conditionAn abnormally high temperature is detected on the hard protector circuit (edge of the heating roller).
Trouble isolation–
Relevant electrical parts• Fusing unit
• Heating roller temperature sensor/2 (TEMS/2)
• IH power supply (IHPU) (bizhub 658e/558e only)
• 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-MFPB CN22E for proper connection and correct or change as necessary. (bizhub 658e/558e)
  4. Check the fusing unit-MFPB CN12E for proper connection and correct or change as necessary. (bizhub 458e)
  5. Check the connector between TEMS/1-relay CN109-MFPB CN15E for proper connection and correct as necessary. (bizhub 658e/558e only)
  6. Check the connector between TEMS/2-relay CN138-MFPB CN15E for proper connection and correct as necessary. (bizhub 658e only)
  7. Replace the fusing unit. (bizhub 658e/558e Part# A79JR71077 / bizhub 458e Part# AA6UR70400)
  8. Replace IHPU. (bizhub 658e/558e only) (Part# A8KNM40A02)
  9. Replace MFPB. (658e/558e Part# AA6RH02103 / 458e Part# AA6UH02101)

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

L.3.12.7 (Link to the Field Service Manual)

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