2NC/2NF/2NG/2NN/3P7/3P8/3P9
1-4-30
6200 Broken fuser heater wire
(Sub)
Fuser thermistor 1 does not
reach primary stable tempera-
ture even after 30 s during
warming up.
Fuser thermistor 1 detects a
temperature lower than
100°C/212°F for 60 s during
ready.
Fuser unit 1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and main/engine PWB
(YC14)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the Fuser unit and execute
U167 counter clear (see page 1-3-56).
Main/Engine PWB 1. Check the main/engine software and
upgrade to the latest, if necessary.
2. Replace the main/engine PWB (see
page 2-2-11).
Fuser thermistor 1
1. Replace the Fuser unit and execute
U167 counter clear (see page 1-3-56).
6220 Abnormally high fuser
thermistor 1 temperature
(Edge)
Fuser thermistor 1 detects a
temperature higher than
230°C/446°F.
Fuser unit 1. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Fuser unit and main/engine PWB
(YC14)
2. If the wiring is disconnected, shorted or
grounded, replace the wiring.
3. Replace the Fuser unit and execute
U167 counter clear (see page 1-3-56).
Main/Engine PWB 1. Check the main/engine software and
upgrade to the latest, if necessary.
2. Replace the main/engine PWB (see
page 2-2-11).
Code Contents Related parts
Check procedures/
corrective measures
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