• 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”.

• Code: C47
• Description: Abnormal IH power voltage / 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, the LGC I/F connectors J522 and J553 are 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 J334 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 fan Check if the IH 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"

• Code: C49
• Description: Abnormal IH circuit or coil
• Remedy: 1. Check the IH control board (1) Check if the conductor pattern on the board is short or open-circuited. (2) Replace the IH control board. 2. Check the IH coil (1) Check if the coil is broken or shorted. (2) Replace the IH coil. 3. Clear the status counter Change the values “13”, “15”, “16” or “19” 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: "13" • The error occurred before the temperature of the fuser roller reaches 150°C: "16" • The error occurred before the machine has become ready: "15" • The error occurred when the machine is in the ready state: "19" [C47], [C48] and [C49] can be cleared by turning OFF and ON the main switch as long as the problem was solved, and the status counter does not have to be changed to "0". The value of the status counter remains until the next service call overwrites the value.

• Code: C4A
• Description: Cleaning web finished
• Remedy: (1) Check if the cleaning web is remaining. (2) Check if the connector J332 on the LGC board is not disconnected. (3) Check if there is no abnormality at the web sensor. (4) Replace the LGC board.

• Code: C55
• Description: RADF I/F error
• Remedy: Is the harness between the ADF board and SLG board open-circuited? Replace the harness. Is the ADF board short- or open-circuited? 1. Replace the ADF board. 2. Perform the EEPROM initialization of RADF, sensor automatical adjustment and tray width sensor adjustment. Replace the SLG board.

• Code: C56
• Description: Communication error between main CPU and PFC
• Remedy: (1) Check if the conductor pattern around IC57 and IC58 is not short- or open-circuited. (2) Replace the LGC board.