C4801 (bizhub C554/C454)

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

Contents

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 Konica Minolta Technical Support.	–	–

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.94. C4801, CC163)

K3.9.3 (Link to the Field Service Manual)