C4501 (bizhub C360i/C300i/C250i)

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Contents

Trouble typeC4501: Laser malfunction
RankB
Trouble detection condition• SOS signal is not detected even after the lapse of a given period of time after starting the laser output.
• SOS signal is not detected for a given period of time during printing or IDC sensor adjustment.
Trouble isolation
Relevant electrical parts• PH unit
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check the connector between the PH unit-relay CN307-BASEB CN17E for proper connection and correct as necessary.
  2. Check CPUB for proper installation and correct as necessary.
  3. Replace the PH unit. (Part# AA2JR71500)
  4. Replace CPUB. (Part# AA2JH02N06)
  5. Replace BASEB. (Part# AA2JH02005)

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

L.3.10.3 (Link to the Field Service Manual)