Toshiba e-studio166 Service Handbook page 176

[C43] Thermistor abnormality during warming up or in ready status after abnormality judgment
1. Check the thermistors
(1) Check if the connectors are disconnected.
(2) Check if the center, side and edge thermistors are in contact with the surface of the fuser roller
properly.
(3) Check if the harnesses of the center, side and edge thermistors are open circuited.
2. Check the heater
(1) Check if the heater is broken.
(2) Check if the connector of the heater is disconnected.
(3) Check if the thermostat is blown.
3. Check the MAIN board
(1) Check if the connectors CN17 are disconnected.
(2) Check if the conductor pattern on the MAIN board is short circuited or open circuited.
(3) Replace the MAIN board.
4. Clear the status counter
After repairing the matter which caused the error [C43], perform the following:
(1) Turn ON the power while [0] and [8] are pressed simultaneously.
(2) Key in "400", then press [START].
(3) Change the current status counter value "4" to "0", then press [ENTER] or [INTERRUPT] (to can-
cel [C43]).
(4) Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready
state.
e-STUDIO163/166/203/206
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