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CD004, CD00F, CD020 (bizhub 950i/850i)

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Trouble type– CD004: Storage access error (connection failure)

– CD00F: Storage data transfer error

– CD020: Storage verify error
RankC
Trouble detection condition– CD004: Unable to communicate between the storage and CPU board (CPUB).

– CD00F: Data transfer from the storage is faulty.

– CD020: The data abnormality is detected by the storage verify check.
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.
  4. Replace CPUB.
  5. Replace BASEB.

(Link to the Field Service Manual)

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