C3B09 (bizhub 958/808)

Contents

Trouble type	C3B09: IH communication error
Rank	C
Trouble detection condition	No signal has been received from the IH power supply a predetermined number of consecutive times.
Trouble isolation	–
Relevant electrical parts	• Fusing unit • IH coil (IHC) • IH power supply (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 right door.
3. Check the fusing unit-MFPB CN30E for proper connection and correct or change as necessary.
4. Check the connector between MFPB CN18E-IHPBCN8for proper connection and correct as necessary.
5. Check the connector between NF1CN2-IHPU CN1 for proper connection and correct as necessary.
6. Check the connector between IHPU CN7-IHMEB CN1 for proper connection and correct as necessary.
7. Check the connector between IHPU-IHC for proper connection and correct as necessary.
8. Check the connector between IHC-IHMEB for proper connection and correct as necessary.
9. Replace the fusing unit. ( 958)A796R71422 )( 808)A795R72922 )
10. Replace IHC. ( A8KNM40401 )
11. Replace IHPU. (958)( A796M40B00 )(808)( A8KNM40A02 )
12. Replace IHMEB. ( A796H00W00 )
13. Replace NF1. (958)( A796M40H00 )(808)( A795M40J00 )
14. Replace MFPB. ( A796H02003)

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.3.9.24.