2MN/2N1
1-4-74
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.
Defective connec-
tor cable or poor
contact in the con-
nector (4000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF tray motor and DF main PWB (YC16)
DF tray sensor 1 and DF main PWB (YC22)
DF tray upper surface sensor and DF main
PWB (YC21, YC13)
Defective connec-
tor cable or poor
contact in the con-
nector (1000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF tray motor and DF main PWB (YC14)
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
motor.
Replace the DF tray motor.
Defective DF main
PWB.
Replace the DF main PWB and check for
correct operation.
8150 DF tray motor error 2
When the main tray has
descended, DF tray sensor 1
or DF tray upper surface sen-
sor does not turn off within
5s.
Defective connec-
tor cable or poor
contact in the con-
nector (4000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF tray motor and DF main PWB (YC16)
DF tray sensor 1 and DF main PWB (YC22)
DF tray upper surface sensor and DF main
PWB (YC21, YC13)
Defective connec-
tor cable or poor
contact in the con-
nector (1000-sheet
finisher).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
DF tray motor and DF main PWB (YC14)
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
motor.
Replace the DF tray motor.
Defective DF main
PWB.
Replace the DF main PWB and check for
correct operation.
Code Contents Causes
Check procedures/
corrective measures
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