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C9404 (bizhub C3320i)

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Trouble typeC9404: CIS LED lighting abnormally (back side)
RankB
Trouble detection conditionAfter a scan job is completed, the machine detected that the average output of the CIS LED is greater than the specified value.
Trouble isolationScanner
Relevant electrical parts-Flat cable
-DF CIS module (DF CIS)
-DF CIS relay board (DFCISRYB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between DF CIS-DFCISRYB CN1 for proper connection and correct as necessary.
  2. Check the connector between DFCISRYB CN2-BASEB CN5 for proper connection and correct as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  4. Replace the flat cable. (Part# AAJPN11500)
  5. Replace the DF CIS module assy. (Part# AAJPR70800)
  6. Replace DFCISRYB. (Part# AAJPH10100)
  7. Replace CPUB. (Part# AAJRH01005)
  8. Replace BASEB. (Part# A93EH02007)

L.3.14.2 (Link to the Field Service Manual)

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