C4551: Laser Malfunction (Cyan); C4552: Laser Malfunction (Magenta); C4553: Laser Malfunction (Yellow); C4554: Laser Malfunction (Black) - Konica Minolta bizhub C250P Service Manual

Field Service Ver. 2.0 Mar. 2006
23.5.46

C4551: Laser malfunction (Cyan)

23.5.47

C4552: Laser malfunction (Magenta)

23.5.48

C4553: Laser malfunction (Yellow)

23.5.49

C4554: Laser malfunction (Black)

PH Unit
Step
1 Check the connector for proper connection and correct as necessary.
2 Change PH Unit
3 Change PWB-D
4 Change PWB-M
23.5.50

C4705: Image Output Time Out

MFP Control Board (PWB-MFP)
Step
Select [Service Mode] → [State Confirmation] → [Memory/HDD Adj.] → [Memory Bus Check]
1
→ [Memory→PRT] of the Jig software.
2 Check the connectors on PWB-MFP for proper connection and correct as necessary.
3 Change PWB-MFP
Relevant Electrical Parts
PH Interface Board (PWB-D)
Mechanical Control Board (PWB-M)
Action
Relevant Electrical Parts
Action
23. Malfunction code
333