• Code: C472
• Description: IH power voltage abnormality (power supply abnormality)
• 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 CN455 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 CN332,CN334 and CN360 are disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 5. Check the switching regurator Check if the connector CN414 are disconnected. 6. Clear the status counter Change the values "10", "11", "12", "13"or "16" of the status counter (08-400) to "0".

• Code: C473
• Description: IH power voltage abnormality (power voltage upper limit abnormality)
• 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 CN455 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 CN332,CN334 and CN360 are disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 5. Check the switching regurator Check if the connector CN414 are disconnected. 6. Clear the status counter Change the values "10", "11", "12", "13"or "16" of the status counter (08-400) to "0".

• Code: C474
• Description: IH power voltage abnormality (power voltage lower limit abnormality)
• 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 CN455 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 CN332,CN334 and CN360 are disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 5. Check the switching regurator Check if the connector CN414 are disconnected. 6. Clear the status counter Change the values "10", "11", "12", "13"or "16" of the status counter (08-400) to "0".

• Code: C475
• Description: IH power voltage abnormality (power supply abnormality when door is opened)
• 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 CN455 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 CN332,CN334 and CN360 are disconnected. (2) Check if the conductor pattern on the board is short- or open-circuited. (3) Replace the LGC board. 5. Check the switching regurator Check if the connector CN414 are disconnected. 6. Clear the status counter Change the values "10", "11", "12", "13"or "16" of the status counter (08-400) to "0".

• Code: C480
• Description: IH abnormality
• Remedy: 1. Check the IH control board and LGC board (1) Check if the conductor pattern on the board is short- or open-circuited. (2) Replace the IH control board. (3) Replace the LGC board. (4) Check if the harnesses connecting the IH board and LGC board are open circuited. 2. Clear the status counter Change the values "15" of the status counter (08-400) to "0".

• Code: C481
• Description: IGBT abnormality
• 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 "14" of the status counter (08-400) to "0".

• Code: C490
• Description: IH control circuit abnormality or IH coil abnormality: The IH control circuit is under abnormal conditions, or the IH coil is broken or has a short-circuit.
• Remedy: 1. Check the power voltage Is the voltage normal? (Is the voltage during the operation ±10% of the rated voltage?) 2. Check the IH control board (1) Check if the harness of IH coil is loosened. (2) Check if the conductor pattern on the board is short circuited or open circuited. (3) Replace the IH control board. 3. Check the IH coil (1) Check if the coil is broken or shorted. (2) Replace the IH coil. 4. Clear the status counter Change the current status counter value (08-400) "17" to "0". [C47X], [C481] and [C490] 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: C4A0
• Description: End of cleaning web
• Remedy: (1) Check if the cleaning web is remaining. (2) Check if the connector CN332 on the LGC board is not disconnected. (3) Check if there is no abnormality at the web sensor. (4) Replace the LGC board.