Toshiba e-STUDIO 4500c, Service Manual

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SERVICE CALL CONDITIONS April 2007
4-50
Fan error 4: fusing exhaust fan SC533 D
The lock signal remained HIGH for 5 sec.
while the fan that draws air out of the fusing
unit was operating.
•
Motor overload due to
obstacle interfering with
operation of the fan
•
Fan harness loose,
disconnected, defective
•
Fan defective
Fan error 5: duplex exhaust fan SC534 D
The lock signal remained HIGH for 5 sec.
while the fan that draws air out of the duplex
unit was operating.
•
Motor overload due to
obstacle interfering with
operation of the fan
•
Fan harness loose,
disconnected, defective
•
Fan defective
Temperature/Humidity control abnormal SC535 C
The output of the
temperature/humidity sensor
reaches the upper or lower limit,
even after the Peltier unit has
been ON for 3 hours.
•
Peltier Cooling Fan Motor is defective.
Heating roller thermistor 1 error 1: Poor connection SC541 A
The temperature measured by
the heating roller thermistor
does not reach 130°C after 10
tries and 65 sec. have elapsed.
•
Heating roller thermistor harness
connection loose, disconnected,
defective
•
Defective heating roller thermistor
Heating roller thermistor 1 error 2: No warmup SC542 A
After the main switch is turned
ON or the cover is closed, the
heating roller temperature does
not reach the ready temperature
within 2 sec. after the heater
switches ON.
-or-
If the roller was below 45
°
C, the
heating roller did not reach the
ready temperature 2 sec. after
reaching 45
°
C.
Note: Thermistor 2 stops
monitoring the temperature once
Thermistor 1 detects ready
temperature.
•
Thermistor is bent, installed incorrectly
•
Defective heating roller thermistor
•
Heating roller fusing lamp broken
Do SP5810 to cancel the SC fusing code.