2NM/2NX/2NY/2NZ/2P0/2P6
1-4-37
6120 Abnormally high fuser
thermistor 1 temperature
(50/60 ppm model)
The detection temperature of
fuser thermistor 1 is higher
than 245Ā°C/473Ā°F.
In a heater-off state, the
detection temperature of fuser
thermistor 1 is higher than
195Ā°C/383Ā°F after the detec-
tion temperature of fuser
thermistor 1 was 155Ā°C/311Ā°F
or less.
(40 ppm model)
The detection temperature of
fuser thermistor 1 is higher
than 250Ā°C/482Ā°F.
In a heater-off state, the
detection temperature of fuser
thermistor 1 is higher than
170Ā°C/338Ā°F after the detec-
tion temperature of fuser
thermistor 1 was 155Ā°C/311Ā°F
or less.
Connector pin See page 1-4-36.
Triac See page 1-4-36.
Fuser thermistor Replace the fuser unit (see page 1-5-44).
Contrl PWB Replace the control PWB and check for cor-
rect operation (see page 2-2-12).
6130 Broken fuser thermistor 1
wire
(50/60 ppm model only)
A/D value of the fuser thermis-
tor 1 exceeds 1019 bit contin-
uously for 4 s during warming
up.
Connector cable or
poor contact in the
connector
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
Fuser thermistor and fuser thermistor con-
nect PWB (YC1)
Fuser thermistor connect PWB and control
PWB (YC21)
Connector pin See page 1-4-36.
Triac See page 1-4-36.
Fuser thermistor Replace the fuser unit (see page 1-5-44).
Fuser thermistor
connect PWB
Replace the fuser thermistor connect PWB.
Control PWB Replace the control PWB and check for cor-
rect operation (see page 2-2-12).
Code Contents Related parts
Check procedures/
corrective measures
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