C9401 (bizhub C650i/C550i/C450i)

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Contents

Trouble typeC9401: Exposure LED lighting failure
RankB
Trouble detection conditionThe output from the CCD sensor is a predetermined value or less during CCD sensor gain adjustment.
Trouble isolationScanner
Relevant electrical parts-LED exposure unit
-Flat cable (LED exposure unit)
-CCD unitScanner drive board (SCDB)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Correct the harness connection between SCDB CN3-LU201 if faulty.
  2. Check the connector between SCDB CN2-BASEB CN6E for proper connection and correct as necessary.
  3. Check the connector between CCDB CN2-BASEB CN6 for proper connection and correct as necessary.
  4. Check CPUB for proper installation and correct as necessary.
  5. Replace the LED exposure unit. (Part# AA7NM31200)
  6. Replace the CCD unit. (Part# AA7NR72500)
  7. SCDB ICP2 conduction check
  8. Replace SCDB. (AA7NH01A00)
  9. Replace CPUB. (C650i Part# AA7NH02P03 / C550i Part# AA7PH02P01 / C450i Part# AA7RH02P02)
  10. Replace BASEB. (Part# AA7NH02102)

L.3.16.1 (Link to the Field Service Manual)