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C3B03 (bizhub 958/808)

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Trouble type C3B03: IH malfunction (monitor)
RankA
Trouble detection conditionC3B03: Though the IH heater is OFF, mechanically, the ON status is detected. (Malfunction of IH heater operation)
Trouble isolation–
Relevant electrical parts• Fusing unit
• IH coil (IHC)
• IH power supply unit (IHPU)
• IH magnetic erasing board (IHMEB)
• Noise filter (NF1)
• 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 upper right door.
  3. Check the fusing unit-MFPB CN30E for proper connection and correct or change as necessary.
  4. Check the connector between NF1 CN2-IHPU CN1 for proper connection and correct as necessary.
  5. Check the connector between IHPU-IHC for proper connection and correct as necessary.
  6. Check the connector between IHC-IHMEB for proper connection and correct as necessary.
  7. Replace the fusing unit. ( 958)A796R71422 )( 808)A795R72922 )
  8. Replace IHC. ( A8KNM40401 )
  9. Replace IHPU. (958)( A796M40B00 )(808)( A8KNM40A02 )
  10. Replace IHMEB. ( A796H00W00 )
  11. MFPB F2E or F3E conduction check
  12. Replace MFPB. ( A796H02003)
  13. Replace NF1. (958)( A796M40H00 )(808)( A795M40J00 )

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

(Link to the Field Service Manual) K.3.9.22. 

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