2MA/2MB
1-4-12
1610 PF heater 2 low temperature 
error (paper feeder 1)
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).
1620 PF heater 1 low temperature 
error (paper feeder 2)
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).
Code Contents Causes
Check procedures/
corrective measures