Konica Minolta bizhub C250 Service Manual page 410

Field Service Ver. 1.0 Jul. 2005
16.5.46 C4551: Laser malfunction (Cyan)
16.5.47 C4552: Laser malfunction (Magenta)
16.5.48 C4553: Laser malfunction (Yellow)
16.5.49 C4554: Laser malfunction (Black)
PH Unit
Step
Check the connector for proper connection
1
and correct as necessary.
2 Change PH Unit
3 Change PWB-D
4 Change PWB-M
16.5.50 C4705: Image Output Time Out
MFP Control Board (PWB-MFP)
Step
Select [Service Mode] → [State Confirma-
tion] → [Memory/HDD Adj.] → [Memory
1
Bus Check] → [Memory→PRT].
Check the connectors on PWB-MFP for
2 proper connection and correct as neces-
sary.
3 Change PWB-MFP
Relevant Electrical Parts
Action
Relevant Electrical Parts
Action
PH Interface Board (PWB-D)
Mechanical Control Board (PWB-M)
WIRING DIAGRAM
Control Signal
—
—
—
—
WIRING DIAGRAM
Control Signal
—
—
—
16. Malfunction code
Location (Electri-
cal Component)
—
—
—
—
Location (Electri-
cal Component)
—
—
—
367