2NL/2P8
1-4-35
6020 Abnormally high fuser
thermistor 2 temperature
Input from fuser thermistor 2
is abnormal value continu-
ously for 1 s.
Fuser unit 1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser thermistor 2 and Fuser PWB
(YC2)
Fuse PWB and Engine PWB (YC22)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. If the I/F connector pins of the fuser unit
and the main unit are deformed owing to
foreign matters, such as paper dusts,
replace the connectors or the units
including the connectors.
Fuser thermistor 2
Replace the Fuser unit (see page 1-5-18).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
44).
6030 Broken fuser thermistor 2
wire
A/D value of the fuser thermis-
tor 2 exceeds 251 bit continu-
ously for 5.6 s during warming
up.
Fuser unit 1. Confirm that the wiring connector is
firmly connected and, if necessary, con-
nect the connector all the way in.
Fuser thermistor 2 and Fuser PWB
(YC2)
Fuse PWB and Engine PWB (YC22)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. If the I/F connector pins of the fuser unit
and the main unit are deformed owing to
foreign matters, such as paper dusts,
replace the connectors or the units
including the connectors.
Fuser thermistor 2
Replace the Fuser unit (see page 1-5-18).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
44).
Code Contents Related parts
Check procedures/
corrective measures
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