Konica Minolta Bizhub C250

[darrengal8]

We have been getting this code cfb55/58 every so often, has any body got any any thoughts on this code.

[JSC]

CFB55 DMA_D 0 error interruption Error concerning
Data transmission
Bus or hardware
(Engine output system)
• MFP Control Board (PWBMFP)/
Engine
CFB58 DMA_D 3 error interruption
Error concerning
Data transmission
Bus or hardware
(inside the Board)

I'd try new RAM 1st.

[oem]

I found this:


The above trouble code might occur when electrical noise generated at the transfer belt unit section that influence to the electrical control.



[Solution]



The grounding spring is newly fit onto the frame of the transfer belt unit. See the attached file.