Kyocera AK-730 Service Manual page 45

Code Contents
8100 DF eject release motor error
When the DF eject release
motor is driven, DF bundle
discharge sensor does not
turn on within 1 s.
8110 DF shift motor 1 error
When the DF shift motor 1 is
driven, DF shift sensor 1 does
not turn on within 160 ms.
8120 DF shift motor 2 error
When the DF shift motor 2 is
driven, DF shift sensor 2 does
not turn on within 160 ms.
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Causes
Defective connec-
tor cable or poor
contact in the con-
nector (4000-sheet
finisher).
Defective connec-
tor cable or poor
contact in the con-
nector (1000-sheet
finisher).
Defective DF bun-
dle discharge sen-
sor.
Defective DF eject
release motor.
Defective DF main
PWB.
Defective connec-
tor cable or poor
contact in the con-
nector.
Defective DF shift
sensor 1.
Defective DF shift
motor 1.
Defective DF main
PWB.
Defective connec-
tor cable or poor
contact in the con-
nector.
Defective DF shift
sensor 2.
Defective DF shift
motor 2.
Defective DF main
PWB.
1-4-13
Check procedures/
corrective measures
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF eject release motor and DF main PWB
(YC12)
DF bundle discharge sensor and DF main
PWB (YC22)
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF eject release motor and DF main PWB
(YC10)
DF bundle discharge sensor and DF main
PWB (YC20)
Replace the DF bundle discharge sensor.
Replace the DF eject release motor.
Replace the DF main PWB and check for
correct operation.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF shift motor 1 and DF main PWB (YC14)
DF shift sensor 1 and DF main PWB (YC23)
Replace the DF shift sensor 1.
Replace the DF shift motor 1.
Replace the DF main PWB and check for
correct operation.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF shift motor 2 and DF main PWB (YC14)
DF shift sensor 2 and DF main PWB (YC23)
Replace the DF shift sensor 2.
Replace the DF shift motor 2.
Replace the DF main PWB and check for
correct operation.
3NC/3NB/3NK