C4091 (bizhub 4750i/4050i)
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Contents
| Trouble type | C4091: Engine communication error |
| Rank | C |
| Trouble detection condition | Communication with the CTL is interrupted for one min. or longer during a stabilization sequence. |
| Trouble isolation | – |
| Relevant electrical parts | -CPU board (CPUB) -Base board (BASEB) |
Procedure
- Reboot the machine.
- Replace CPUB. (Part# ACT9H01003)
- Replace BASEB.
4750i (Part# ACT9H02013)
4050i (Part# ACT9H02002)