C2254: Color Pc Drum Motor's Turning At Abnormal Timing; C2255: Color Developing Motor's Failure To Turn; C2256: Color Developing Motor's Turning At Abnormal Timing - Konica Minolta bizhub C250 Service Manual

Field Service Ver. 3.0 Aug. 2006
16.5.7

C2254: Color PC Drum Motor's turning at abnormal timing

Color PC Drum Motor (M2)
Step
1 M2 operation check
2 Change PWB-M
16.5.8

C2255: Color Developing Motor's failure to turn

Color Developing Motor (M3)
Step
Check the connector of motor for proper
1
connection and correct as necessary.
Check the connector of motor for proper
2
drive coupling and correct as necessary.
Check the PU1 connector for proper
3
connection and correct as necessary.
Check the PWB-M connector for proper
4
connection and correct as necessary.
M3 operation check
5
6 Change PU1
7 Change PWB-M
16.5.9

C2256: Color Developing Motor's turning at abnormal timing

Color Developing Motor (M3)
Step
M3 operation check
1
2 Change PU1
3 Change PWB-M
Relevant Electrical Parts
Action
Relevant Electrical Parts
Action
Relevant Electrical Parts
Action
Mechanical Control Board (PWB-M)
WIRING DIAGRAM
Control Signal
PWB-M CNDM3-5 (REM)
PWB-M CNDM3-8 (LOCK)
—
DC Power Supply (PU1)
Mechanical Control Board (PWB-M)
WIRING DIAGRAM
Control Signal
—
—
—
—
PWB-M CNDM2-5 (REM)
PWB-M CNDM2-8 (LOCK)
—
—
DC Power Supply (PU1)
Mechanical Control Board (PWB-M)
WIRING DIAGRAM
Control Signal
PWB-M CNDM2-5 (REM)
PWB-M CNDM2-8 (LOCK)
—
—
16. Malfunction code
Location (Electri-
cal Component)
C-21
—
Location (Electri-
cal Component)
—
—
—
—
C-20 to 21
—
—
Location (Electri-
cal Component)
C-20 to 21
—
—
445