Toshiba e-STUDIO5540C Service Manual page 120

Check item
Power supply
Error detection history
Pressure roller thermistor
Fuser unit
LGC board
Status counter
Replace parts
Pressure roller thermistor
Fuser unit
Power supply
LGC board
[C467] Pressure roller thermistor abnormality after entering ready status (temperature
abnormality at ready status
[C468] Pressure roller thermistor abnormality after entering ready status (overheating)
Classification
Fuser unit related service call
Check item
Power supply
Pressure roller thermistor
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• Check if the power voltage is normal.(Is the voltage during
the operation ±10% of the rated voltage?)
• Connector check (CN403, CN409)
Check the error detection history of each temperature
detecting element when the error occurred. If any of the
elements detects an abnormal temperature, check next.
• 08-4531: Fuser belt center thermopile temperature
• 08-4532: Fuser belt edge thermistor temperature
• 08-4533: Pressure roller center thermistor temperature
• 08-4545: Pressure roller rear thermistor temperature
• Sensor check
• Install check
• Is the pressure roller rear thermistor contacted with the
pressure roller surface securely?
• Unit check
• Connector check
• Harness check
• Connector check (CN301, CN306)
• Harness check
1. [0], [8] Power ON.
2. Key in "2002", then press [START].
3. Reset the status counter values "61", "70", "71" or "62" to
"0". Then press [ENTER] on the touch panel or the
[INTERRUPT] button on the control panel. (The error
C461, C462 or C464 is released.)
4. Turn the power OFF and then back ON. Make sure that
the equipment enters the normal ready state.
• Check if the power voltage is normal.(Is the voltage during
the operation ±10% of the rated voltage?)
• Connector check (CN403, CN409)
• Sensor check
• Install check
• Is the pressure roller rear thermistor contacted with the
pressure roller surface securely?
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
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Measures
Remarks
Error item
Measures
ERROR CODE and TROUBLESHOOTING
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