Remedy: (1) Check if the connector of the transfer belt cam motor is not disconnected. (2) Check if the transfer belt contact/release switch is working properly. (3) Replace the transfer belt cam motor. (4) Replace the LGC board.
Code: C41
Description: Abnormal thermistor or heater at the power ON
Remedy: 1. Check the thermistors (1) Check if the connectors are disconnected. (2) Check if the center and side thermistors (front, rear) are in contact with the surface of the fuser roller properly? (3) Check if the harnesses of the center and side thermistors are open-circuited. 2. Check the IH control board and IH coil (1) Check if the IH coil is broken. (2) Check if the connector of the IH coil is disconnected. (3) Check if the thermostat is blown. (4) Check if the connectors on the IH control board are disconnected (AC input connector and LGC I/F connectors J552 and J553). (5) Check if the IH control board or the switching power supply unit are abnormal. • Replace the IH control board. 3. Check the LGC board (1) Check if the connector J334 is disconnected. (2) Check if the conductor pattern on the LGC board is short- or open-circuited. (3) Replace the LGC board. 4. Clear the status counter After repairing the matter which caused the error [C41], perform the following: (1) Turn ON the power while [0] and [8] are pressed simultaneously. (2) Enter “400” with the digital keys, then press the [START] key. (3) Change the current status counter value “1” or “2” to “0”, then press the [SET] key or [INTERRUPT] key (to cancel [C41]). (4) Turn the power OFF and then back ON. Make sure that the copier enters the normal standby state.
Code: C43
Description: Abnormal thermistor after abnormality judgment
Remedy: 1,2.3. Check the thermistors, IH control board, IH coil and LGC board Check the above components following the procedure 1, 2 and 3 for [C41]. 4. Clear the status counter Change the current status counter value (08-400) “4” to “0” for [C43] and “5”, “7” or “9” to “0” for [C44], taking the same procedure as that for [C41]. * The status counter value is as follows in the following cases. Change them to "0" respectively. • The error occurred during warming-up: "4" or "5" • The error occurred after the machine has become ready: "6" • The temperature detected by the center thermistor is 230°C or higher: "9" • The temperature detected by the side thermistor is 270°C or higher: "9"
Code: C44
Description: Abnormal fuser after abnormality judgment
Remedy: 1,2.3. Check the thermistors, IH control board, IH coil and LGC board Check the above components following the procedure 1, 2 and 3 for [C41]. 4. Clear the status counter Change the current status counter value (08-400) “4” to “0” for [C43] and “5”, “7” or “9” to “0” for [C44], taking the same procedure as that for [C41]. * The status counter value is as follows in the following cases. Change them to "0" respectively. • The error occurred during warming-up: "4" or "5" • The error occurred after the machine has become ready: "6" • The temperature detected by the center thermistor is 230°C or higher: "9" • The temperature detected by the side thermistor is 270°C or higher: "9"counter value (08-400) “6” to “0”.
Code: C45
Description: Abnormal side thermistor after the copier has become ready
Remedy: 1. Check the side thermistor (1) Check if the connector is disconnected. (2) Check if the side thermistor is in contact with the surface of the fuser roller properly. (3) Check if the harness of the side thermistor is open-circuited. 2. Check the LGC board (1) Check if the connector J334 is disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 3. Clear the status counter Change the current status counter value (08-400) “6” to “0”.
Code: C46
Description: Abnormal pressure roller thermistor during a ready state
Remedy: 1. Check the pressure roller thermistor. (1) Check if the connector is not disconnected. (2) Check if the pressure roller thirmistor closely touches the surface of the pressure roller. (3) Check if the harness of the pressure roller thermistor is not open-circuited. 2. Check the LGC board. (1) Check if the connector J334 is not disconnected. (2) Check if the conductor pattern on the LGC board is not short- or open-circuited. (3) Replace the LGC board. 3. Clear the status counter. Change the current status counter value (08-400) “3” or “8” to “0”.