Kyocera DF-770 Service Manual page 46

Code Contents
8130 DF shift release motor error
When the DF shift release
motor is driven, DF shift
release sensor does not turn
on within 1 s.
8140 DF tray motor error 1
When the main tray has
started ascending, DF tray
sensor 1 or DF tray upper sur-
face sensor does not turn on
within 20 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. DF shift release motor and DF main PWB
(YC14)
DF shift release sensor and DF main PWB
(YC23)
Defective DF shift Replace the DF shift release sensor.
release sensor.
Defective DF shift Replace the DF shift release motor.
release motor.
Defective DF main Replace the DF 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 (4000-sheet DF tray motor and DF main PWB (YC16)
finisher). DF tray sensor 1 and DF main PWB (YC22)
DF tray upper surface sensor and DF main
PWB (YC21, YC13)
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 (1000-sheet DF tray motor and DF main PWB (YC14)
finisher). DF tray sensor 1 and DF main PWB (YC20)
DF tray upper surface sensor and DF main
PWB (YC18)
Defective sensor. Replace DF tray sensor 1 or DF tray upper
surface sensor.
Defective DF tray Replace the DF tray motor.
motor.
Defective DF main Replace the DF main PWB and check for
PWB. correct operation.
1-4-14
3NC/3NB/3NK
Check procedures/
corrective measures