C4801 (bizhub 754e/654e)

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Trouble type Main unit board failure
Trouble code C4801
Rank C
Detection timing MFP detects simultaneous replacement of multiple boards.
Trouble isolation –
Relevant electrical parts • SSD board (SSDB)
• Printer control board (PRCB)

  (2)Procedure

Step Action Control signal Location of electrical components
1 Reinstall the old PRCB. – –
2 If the above actions do not solve the problem, contact KM. – –

NOTE

  • Do not replace the printer control board and the SSD board at the same time. The backup data is lost and image failure may be caused.
  • Link to the layout drawings for related parts by each trouble code (S.82. C4801, CC163)

Document Information ID D0001104792 Revise ID R000003

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

K.3.9.5 (Link to the Field Service Manual)