2PS/2PT
1-4-14
1640 PF heater 1 low temperature
error (paper feeder 3)
An external temperature
higher than + 5C/+ 9F is not
detected when one minute
elapses after PF heater 1 is
turned on.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
PF heater 1 and PF heater PWB (YC1)
PF heater PWB (YC3) and PF main PWB
(YC113)
PF thermistor 1 and PF main PWB (YC114)
PF thermistor 1
installed incor-
rectly.
Check the installation of the PF thermistor 1.
Defective PF
thermistor 1.
Replace the top heater unit (Refer to the
service manual for the paper feeder).
Broken PF heater
1.
Replace the top heater unit (Refer to the
service manual for the paper feeder).
Defective PF
heater PWB or PF
main PWB.
Replace the PF heater PWB or PF main
PWB (Refer to the service manual for the
paper feeder).
1650 PF heater 2 low temperature
error (paper feeder 3)
An external temperature
higher than + 5C/+ 9F is not
detected when one minute
elapses after PF heater 2 is
turned on.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
PF heater 2 and PF heater PWB (YC2)
PF heater PWB (YC3) and PF main PWB
(YC113)
PF thermistor 2 and PF main PWB (YC115)
PF thermistor 2
installed incor-
rectly.
Check the installation of the PF thermistor 2.
Defective PF
thermistor 2.
Replace the side heater unit (Refer to the
service manual for the paper feeder).
Broken PF heater
2.
Replace the side heater unit (Refer to the
service manual for the paper feeder).
Defective PF
heater PWB or PF
main PWB.
Replace the PF heater PWB or PF main
PWB (Refer to the service manual for the
paper feeder).
1800 Paper feeder communica-
tion error
Communication error between
engine PWB and optional
paper feeder.
Improper installa-
tion paper feeder.
Follow installation instruction carefully again.
Defective connec-
tor cable or poor
contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
PF main PWB (YC3) and engine PWB
(YC33)
Defective engine
PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-26).
Defective PF main
PWB.
Replace the PF main PWB (Refer to the ser-
vice manual for the paper feeder).
Code Contents Causes
Check procedures/
corrective measures