Toshiba e-studio 2555c, Руководство по обслуживанию

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ERROR CODE AND TROUBLESHOOTING
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8.3.16 Fuser unit related service call
[C445/C446/C447/C449] IH-COIL abnormality after abnormality judgment
Notes:
Be sure to turn OFF the power and unplug the power cable beforehand when checking the
power supply unit and fuser unit.
The fuser unit itself or the part of the unit remains heated and the capacitors are still charged
after a while the power cable is unplugged. So make sure the unit is cooled down enough
before checking.
Classification Error content
Fuser unit related service call IH-COIL abnormality after abnormality judgment
Procedure Check item Measures
1 Power voltage Check if the power voltage is normal.(Is the voltage
during the operation ±10% of the rated voltage?)
2 Thermistor • Check if the center and edge thermistor are installed
properly.
• Check if the harnesses of the center and edge
thermistor are open circuited.
• Check if the connectors of the center and edge
thermistor are disconnected (J1101).
3 Switching regulator and
fuser unit • Is the fuser unit installed correctly?
• Check if the IH-COIL is broken.
• Check if the terminal of the IH-COIL is attached
securely.
• Check if the thermostat is blown
• Check if the drawer connector is damaged or its
connection is detected.
• Check if the connectors of the power supply unit are
disconnected (CN504, CN506).
• Check if the power supply unit is abnormal.
4 LGC board • Check if the connectors CN355 and CN357 are
disconnected.
• Check if the conductor pattern on the LGC board is
short circuited or open circuited.