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Code
Contents
6230
Fuser thermistor 1 (edge)
break error
During warming up a hearter,
fuser thermistor 2 detects a
temperature of 100 °C/212 °F
or higher and, fuser thermistor
1 detects a temperature of 37
°C/99 °F or lower.
6250
Abnormally low fuser
thermistor 1 (edge) temper-
ature
The fuser temperature lower
than 80 °C/176 °F is detected
continuously for 1 s during
printing.
Fuser unit type mismatch
6410
problem
Absence of the fuser unit is
detected.
6600
Belt rotation error
The belt was detected to stop
for 2 s continuously during
motor remote is on.
6710
CPU thermal runaway
(IHPWB)
Y116141-8
Causes
Defective connec-
Reinsert the connector. Also check for conti-
tor cable or poor
nuity within the connector cable. If none,
contact in the con-
replace the cable.
nector.
Fuser thermistor 1 and fuser PWB (YC3)
Fuser unit and engine PWB (YC30)
Deformed connec-
If the I/F connector pins of the fuser unit and
tor pin.
the main unit are deformed owing to foreign
matters, such as paper dusts, replace the
connectors or the units including the con-
nectors.
Defective fuser
Replace the fuser unit (see page 1-5-17).
thermistor.
Defective PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-33).
Deformed connec-
If the I/F connector pins of the fuser unit and
tor pin.
the main unit are deformed owing to foreign
matters, such as paper dusts, replace the
connectors or the units including the con-
nectors.
Defective fuser
Replace the fuser unit (see page 1-5-17).
thermistor.
Defective fuser
heater.
Defective PWB.
Replace the IH PWB or the engine PWB and
check for correct operation (see page 1-5-
51, 1-5-33).
Fuser unit connec-
Reinsert the fuser unit connector if neces-
tor inserted incor-
sary.
rectly.
Different type of
Install the correct fuser unit
the fuser unit is
(see page 1-5-17).
installed.
Defective fuser
Replace the fuser motor.
motor.
Defective IH belt.
Replace the fuser unit (see page 1-5-17).
Defective IH PWB.
Replace the IH PWB and check for correct
operation (see page 1-5-51).
Defective PWB.
Replace the engine PWB and check for cor-
rect operation (see page 1-5-33).
Defective PWB.
Replace the IH PWB and check
for correct operation (see page 1-5-51).
1-4-41
Check procedures/
corrective measures
Service Manual
2NP
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