C9402 (bizhub C554e/C454e)

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Contents

Trouble typeExposure LED lighting abnormally
Trouble codeC9402
RankA
Detection timingThe average output value of the CCD sensor with the scanner at its standby position is a predetermined value or more at the end of a scan job.
Trouble isolationScanner
Relevant electrical parts• LED exposure unit (LU201) 
• Flat cable (LED exposure unit) 
• CCD board (CCDB) 
• Scanner drive board (SCDB) 
• Printer control board (PRCB) 
• MFP board (MFPB)

 (2)Procedure

StepActionControl signalLocation of electrical components
1Check the connection between SCDB PJ3-LU201, and correct if necessary.
2Check the connector between SCDB PJ2-PRCB CN43 for proper connection and correct as necessary.
3Check the connector between CCDB PJ3-MFPB PJ01 for proper connection and correct as necessary.
4Check the status of the harness between CCDB-MFPB and replace as necessary.
5Replace the LED exposure unit (Part# A7PUR71000)
6Replace CCDB (Part# A5C1R70000)
7SCDB F1 conduction check
8Replace SCDB (Part# A5C1H01A11 or A5C1H01A00Old)
9Replace PRCB (C554e Part# A5AYH00101 / C454e Part# A5C0H00101)
10Replace MFPB (Part #A5C1H0200B)

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

K.3.13.1 (Link to the Field Service Manual)