CD004 (bizhub C4050i/C3350i)

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Trouble typeCD004: Storage access error (connection failure)
RankC
Trouble detection conditionCD004: Unable to communicate between the storage andCPU board (CPUB).
Trouble isolation–
Relevant electrical parts• Storage board (STRGB)
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check STRGB for proper installation and correct as necessary.
  2. Check CPUB for proper installation and correct as necessary.
  3. Replace STRGB.  STRGB (Part# AA2JM72700)
  4. Replace CPUB.CPUB (Part# A93EH01004)
  5. Replace BASEB.BASEB (Part# A93EH02007)

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

L.3.17.2. (Link to the Field Service Manual)