C9401 (bizhub C658/C558/C458/C368/C308/C258)

Contents

Trouble type	C9401: Exposure LED lighting failure
Rank	B
Trouble detection condition	The output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment.
Trouble isolation	Scanner
Relevant electrical parts	• LED exposure unit • Flat cable (LED exposure unit) • CCD board (CCDB) • Scanner drive board (SCDB) • MFP board (MFPB)

 Procedure

1. Correct the harness connection between SCDB CN3-LU201 if faulty.
2. Check the connector between SCDB CN2-MFPB CN12E for proper connection and correct as necessary. (bizhub C368/C308/C258)
3. Check the connector between SCDB CN2-MFPB CN6E for proper connection and correct as necessary. (bizhub C658/C558/C458)
4. Check the connector between CCDB CN3-MFPB CN1 for proper connection and correct as necessary. (bizhub C368/C308/C258)
5. Check the connector between CCDB PJ3-MFPB CN9 for proper connection and correct as necessary. (bizhub C658/C558/C458)
6. Replace the LED exposure unit. (bizhub C368/C308/C258 / bizhub C658/C558/C458)
7. Replace CCDB. (bizhub C368/C308/C258 (Part# A7PUR75200) / bizhub C658/C558/C458 (Part# A79JR72700))
8. Replace SCDB. (bizhub C368/C308/C258 (Part# A7PUH01A01(Except Refresh Model) / A7PUH01D00(Refresh Model) / bizhub C658/C558/C458) (Part# A796H01A00)
9. Replace MFPB. (bizhub C368/C308/C258 (Part# A7PUH02123) / bizhub C658/C558/C458 (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.3.21.1 (Link to the Field Service Manual)