Kyocera TASKalfa 7002i Service Manual page 1327

Step Check description
3 Checking the connection
4 Replacing the MB main
PWB
5 Replacing the DF main
PWB
C8510: MB conveying motor error 1
Object: 4000-sheet finisher + Mail box
The MB home position sensor does not turn on after passing 5s during the initial operation.
Step Check description
1 Checking the MB convey-
ing roller
2 Checking the connection
3 Replacing the MB convey-
ing motor
4 Checking the MB home
position sensor
5 Replacing the MB main
PWB
Assumed cause
The connector is not prop-
erly connected. Or, the
wire is faulty.
The MB main PWB is
faulty.
The DF main PWB is
faulty.
Assumed cause
The MB conveying roller is
not assembled properly.
The connector is not prop-
erly connected. Or, the
wire is faulty.
The MB conveying motor
is faulty.
The MB home position
sensor is not properly
attached or faulty.
The MB main PWB is
faulty.
7-467
Measures
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. • MB main PWB -
DF main PWB
Replace the MB main PWB.
Replace the DF main PWB.
Measures
If the MB conveying roller is
not rotated manually, repair
the part that restricts the
operation.
Clean the terminal of the fol-
lowing wire connectors and
reconnect the connectors. If
there is no continuity, replace
the wire. • MB conveying
motor - MB main PWB • MB
home position sensor - MB
main PWBPWB
Execute U240 [Mail Box] >
[Conv]. If the MB conveying
motor does not properly oper-
ate, replace it.
Reattach the MB home posi-
tion sensor and execute
U241 [Mail Box] > [Motor
HP]. If the sensor does not
properly operate, replace it.
Replace the MB main PWB.
2WA/2NJ/2RK-3
Reference
Wiring dia-
gram
Detaching
and reat-
taching the
DF main
PWB
Reference
Wiring dia-
gram
Executing
U240
Executing
U241