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CD401 (bizhub C360i/C300i/C250i)

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Trouble typeCD401: NACK command incorrect
RankC
Trouble detection conditionWhen abnormality is found in the communication of controller.
Trouble isolation–
Relevant electrical parts• Control panel
• CPU board (CPUB)
• Base board (BASEB)

Procedure

  1. Check whether there is a strong electromagnetic noise source near the main body.
  2. Check the connector between the control panel-BASEB CN7 for proper connection and correct as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  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.3.18.27 (Link to the Field Service Manual)

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