Description: Thermistor or heater is abnormal at power ON
Remedy: 1. Check the thermistors (1) Check if the connectors are disconnected. (2) Check if the center and side thermistors 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 connector J552). (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 connectors J315 and J317 are 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: Thermistor is abnormal 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” or “6” 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" or "7" • 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: Fuser is abnormal 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” or “6” 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" or "7" • 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: C45
Description: Side thermistor is abnormal 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 J315 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) “8” to “0”.
Code: C47
Description: IH power voltage is abnormal/IH initialization error
Remedy: 1. Check the AC input voltage Check if the AC input voltage is within the specified range. (especially when the heater becomes ON after the power is turned ON (the copier is warming up)) 2. Check the thermostat Check if the thermostat is blown. 3. Check the IH control board (1) Check if the AC input connector on the IH control board or the LGC I/F connector J522 is disconnected? (2) Check if the fuse on the IH control board has blown. (3) Replace the IH control board. 4. Check the LGC board (1) Check if the connector J317 is disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 5. Clear the status counter Change the values “10”, “11”, “13”, “14” or “17” of the status counter (08-400) to “0”. * The status counter value is as follows in the following cases. Change them to "0" respectively. • The error occurred immediately after the power was turned ON: "10" • The error occurred before the temperature of the fuser roller reaches 40°C: "11" • The error occurred before the temperature of the fuser roller reaches 150°C: "14" • The error occurred before the machine has become ready: "13" • The error occurred when the machine is in the ready state: "17"
Code: C48
Description: IGBT high temperature
Remedy: 1. Check the operation of the IH control board cooling fan Check if the IH control board cooling fan is rotating normally. (Is the connector securely connected?) 2. Check the IH control board (1) Check if the IGBT or IGBT radiation plate are normal. (Is the radiation plate securely attached?) (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the IH control board. 3. Clear the status counter Change the values “12”, “14”, “15” or “18” of the status counter (08-400) to “0”. * The status counter value is as follows in the following cases. Change them to "0" respectively. • The error occurred before the temperature of the fuser roller reaches 40°C: "12" • The error occurred before the temperature of the fuser roller reaches 150°C: "15" • The error occurred before the machine has become ready: "14" • The error occurred when the machine is in the ready state: "18"