Kyocera TASKalfa 4500i Service Manual page 362

Code Contents
8500 Mailbox communication
error
(4000-sheet finisher)
Communication failed to be
established after the mailbox
was hooked up.
8510 MB conveying motor error 1
(4000-sheet finisher)
When initial operation, MB
home position sensor does
not turn on within 5 s.
8520 MB conveying motor error 2
(4000-sheet finisher)
When standby operation, MB
home position sensor does
not turn off within 1 s.
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. MB main PWB (YC3) and DF main PWB
(YC6)
Defective PWB. Replace the MB main PWB or the DF main
PWB and check for correct operation.
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. MB conveying motor and MB main PWB
(YC5)
MB home position sensor and MB main
PWB (YC2)
Defective MB Replace the MB home position sensor.
home position sen-
sor.
Defective MB con- Replace the MB conveying motor.
veying motor.
Defective MB main Replace the MB main PWB and check for
PWB. correct operation.
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector. MB conveying motor and MB main PWB
(YC5)
MB home position sensor and MB main
PWB (YC2)
Defective MB Replace the MB home position sensor.
home position sen-
sor.
Defective MB con- Replace the MB conveying motor.
veying motor.
Defective MB main Replace the MB main PWB and check for
PWB. correct operation.
1-4-58
2LL/2LJ/2LH-2
Check procedures/
corrective measures