Toshiba e-STUDIO5540C Service Manual page 118

[C443] IH abnormality after abnormality judgment (not reaching to intermediate temperature)
[C445] IH abnormality after abnormality judgment (pre-running end temperature abnormality)
[C446] IH abnormality after abnormality judgment (pre-running end temperature abnormality)
[C447] IH abnormality after abnormality judgment (temperature abnormality at ready status)
[C449] IH abnormality after abnormality judgment (high temperature abnormality)
Classification
Fuser unit related service call
Check item
Power supply
Error detection history
Thermopiles
Fuser unit
IH coil
IH board
LGC board
Status counter
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• Check if the power voltage is normal.(Is the voltage during
the operation ±10% of the rated voltage?)
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.
• 08-4530: 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
• Check if the fuser belt center and side thermopiles (front,
rear) are installed properly.
• Check if the harnesses of the fuser belt center and side
thermopiles (front, rear) are open circuited.
• Unit check
• Connector check
• Harness check
• Connector check
• Harness check
• Connector check
• Harness check
• Connector check (CN305, CN306)
• Harness check
1. [0], [8] Power ON.
2. Key in "2002", then press [START].
3. Change the current status counter value (08-2002) "3",
"5", "6", "9", "19", "21", "22", "23", "24", "25", "27" or "29" to
"0" for [C44X], taking the same procedure as that for
[C41X])
4. Turn the power OFF and then back ON. Make sure that
the equipment enters the normal ready state.
The status counter value is as follows in the following cases.
• The error occurred during warming-up: "3", "5" or "6"
• The error occurred after the equipment has become
ready: "7"
• The temperature detected by the fuser belt center
thermopile is 230?C or higher, the temperature detected
by the side thermopile is 230?C or higher or the
temperature detected by the edge thermopile is 230?C or
higher: "9", "19", "21", "22", "23", "25", "27" or "29".
• The error occurred during printing: "24" or "25"
• The error occurred during energy saving: "27"
• A paper jam occurred: "29"
e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C
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Error item
Measures
ERROR CODE and TROUBLESHOOTING
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