Toshiba e-STUDIO350 Service Handbook page 502

[C440] Fuser abnormality after abnormality judgment
1,2.3. Check the thermistors, IH board, IH coil and LGC board
Check the above components following the procedures 1, 2 and 3 for [C410].
4. Clear the status counter
Change the current status counter value (08-400) "5", "7" or "9" to "0" for [C440], taking the same pro-
cedure as that for [C410].
• The status counter value is as follows in the following cases. Change them to "0" respectively.
- The error occurred during warming-up: "5"
- The error occurred after the equipment has become ready: "7"
- The temperature detected by the main thermistor is 230°C or higher: "9"
- The temperature detected by the edge thermistor is 280°C or higher: "9"
[C450] Thermistor abnormality during printing
1. Check the edge thermistor
1) Check if the connector is disconnected.
2) Check if the edge thermistor is in contact with the surface of the fuser roller properly.
3) Check if the harness of the edge thermistor is open circuited.
2. Check the LGC board
1) Check if the connector CN302 is disconnected.
2) Check if the conductor pattern on the board is short circuited or open circuited.
3) Replace the LGC board.
3. Clear the status counter
Change the current status counter value (08-400) "6" to "0".
e-STUDIO350/352/353/450/452/453
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