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C3732 (bizhub C658/C558/C458)

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Trouble typeC3732: Fusing abnormally high temperature detection hard protector (Edge of the heating roller) (bizhub C658 or bizhub C558 (Europe))
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 sensor2 (TEMS/2)
• IH power supply (IHPU) (bizhub C658/C558 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 C658/C558)
  4. Check the fusing unit-MFPB CN12E for proper connection and correct or change as necessary. (bizhub C458)
  5. Check the connector between TEMS/1-relay CN109-MFPB CN15E for proper connection and correct as necessary. (bizhub C658/C558)
  6. Check the connector between TEMS/2-relay CN138-MFPB CN15E for proper connection and correct as necessary. (bizhub C658/C558)
  7. Replace the fusing unit. (bizhub C658/C558 Part# A79JR71066/ bizhub C458 Part# A79MR70222)
  8. Replace IHPU. (bizhub C658/C558 only) (Part# A8KNM40A02)
  9. Replace MFPB. (C458 Part# A79MH02102 / C558 or C658 Part # A79JH02102)

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

K.3.14.7 (Link to the Field Service Manual)

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