C3B09 (bizhub 658e/558e)

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Trouble typeC3B09: IH communication error (bizhub 658e/558e)
RankC
Trouble detection conditionNo signal has been received from the fusing CPU a predetermined number of consecutive times.
Trouble isolation–
Relevant electrical partsFusing unitIH coil (IHC)IH power supply (IHPU)IH magnetic erasing board (IHMEB)NF board (NFB)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.
  4. Check the connector between MFPB CN13E-NFB CN3 for proper connection and correct as necessary.
  5. Check the connector between NFB CN2-IHPU CN1 for proper connection and correct as necessary.
  6. Check the connector between IHPU-IHC for proper connection and correct as necessary.
  7. Check the connector between IHC-IHMEB for proper connection and correct as necessary.
  8. Replace the fusing unit. (Part# A79JR71077)
  9. Replace IHC. (Part# A79JM40C00)
  10. Replace IHPU. (Part# A8KNM40A02)
  11. Replace IHMEB. (658e Part# A2XKH00A00 / 558e Part# A796H00W00)
  12. Replace NFB. (Part# A795M40J00)
  13. Replace MFPB. (Part# AA6RH02103)

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

L.3.12.14 (Link to the Field Service Manual)