C0B77: Punch Motor Malfunctions - Konica Minolta Bizhub C350 Service Manual

Trouble code
2.3.10

C0B77: Punch Motor malfunctions

A. Detection timing
Malfunction code
The home position is not detected within a given period of time after the Punch
Motor has been rotated a half turn.
An encoder clock input is not detected even after the lapse of a given period of time
C0B77
during operation of the Punch Motor.
The setting value calculated during the initial operation falls outside the threshold
value range.
B. Action
Punch Home Position Sensor (PI1P-PK)
Punch Motor Clock Sensor (PI3P-PK)
Punch Motor (M1P-PK)
Step
Check the motor and sensor connectors
1 for proper connection, and correct as
necessary.
Check the connector of motor for proper
2 drive coupling, and correct as neces-
sary.
3 PI1P-PK I/O, sensor check
4 PI3P-PK I/O, sensor check
M1P-PK operation check when the
5
Power Switch is turned OFF and ON.
6 PWB-B PK replacement
Relevant electrical parts
Action
4-20
bizhub C350 Field Service Ver.1.0 Mar. 2004
Description
Punch Control Board (PWB-B PK)
WIRING DIAGRAM
Control signal
-
-
PWB-B PK J1006 PK-6
PWB-B PK J1006 PK-9
PWB-B PK J1002 PK-1,2
-
Location
(Electrical compo-
nents)
-
-
C-2
C-2
D-2
C-1