• Code: C445
• Description: Fuser unit related service call IH coil abnormality after abnormality judgment(pre-running end temperature abnormality)
• Causes:
• Remedy: 1 Power voltage Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) 2 Thermistor • Check if the center and edge thermistor are installed properly. • Check if the harnesses of the center and edge thermistor are open circuited. • Check if the connectors of the center and edge thermistor are disconnected (J1101). 3 Switching regulator and fuser unit • Is the fuser unit installed correctly? • Check if the IH-COIL is broken. • Check if the terminal of the IH-COIL is attached securely. • Check if the thermostat is blown • Check if the drawer connector is damaged or its connection is detected. • Check if the connectors of the power supply unit are disconnected (CN504, CN506). • Check if the power supply unit is abnormal. 4 LGC board • Check if the connectors CN355 and CN357 are disconnected. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 5 Clear the status counter 1. [0]+ [8] Power ON. 2. Key in "2002", then press [START]. 3. Change the current status counter value (08-2002) "5", "6", "7", "9", "22", "23", "24", "25", "27", "29", or "63 to 66". * The status counter value is as follows in the following cases. - The error occurred during warming-up: "5" or "6" The error occurred after the equipment has become ready: "7". - The temperature detected by the center thermistor is 220°C or higher, the temperature detected by the edge thermistor is 235°C or higher : "9", "22", "23", "25", "27" or "29" - The error occurred during printing: "24", "25", or "64 to 66". - The error occurred during energy saving: "27". - A paper jam occurred: "29".

• Code: C446
• Description: Fuser unit related service call IH coil abnormality after abnormality judgment(pre-running end temperature abnormality)
• Causes:
• Remedy: 1 Power voltage Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) 2 Thermistor • Check if the center and edge thermistor are installed properly. • Check if the harnesses of the center and edge thermistor are open circuited. • Check if the connectors of the center and edge thermistor are disconnected (J1101). 3 Switching regulator and fuser unit • Is the fuser unit installed correctly? • Check if the IH-COIL is broken. • Check if the terminal of the IH-COIL is attached securely. • Check if the thermostat is blown • Check if the drawer connector is damaged or its connection is detected. • Check if the connectors of the power supply unit are disconnected (CN504, CN506). • Check if the power supply unit is abnormal. 4 LGC board • Check if the connectors CN355 and CN357 are disconnected. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 5 Clear the status counter 1. [0]+ [8] Power ON. 2. Key in "2002", then press [START]. 3. Change the current status counter value (08-2002) "5", "6", "7", "9", "22", "23", "24", "25", "27", "29", or "63 to 66". * The status counter value is as follows in the following cases. - The error occurred during warming-up: "5" or "6" The error occurred after the equipment has become ready: "7". - The temperature detected by the center thermistor is 220°C or higher, the temperature detected by the edge thermistor is 235°C or higher : "9", "22", "23", "25", "27" or "29" - The error occurred during printing: "24", "25", or "64 to 66". - The error occurred during energy saving: "27". - A paper jam occurred: "29".

• Code: C447
• Description: IH coil abnormality after abnormality judgment(temperature abnormality at ready status)
• Causes:
• Remedy: 1 Power voltage Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) 2 Thermistor • Check if the center and edge thermistor are installed properly. • Check if the harnesses of the center and edge thermistor are open circuited. • Check if the connectors of the center and edge thermistor are disconnected (J1101). 3 Switching regulator and fuser unit • Is the fuser unit installed correctly? • Check if the IH-COIL is broken. • Check if the terminal of the IH-COIL is attached securely. • Check if the thermostat is blown • Check if the drawer connector is damaged or its connection is detected. • Check if the connectors of the power supply unit are disconnected (CN504, CN506). • Check if the power supply unit is abnormal. 4 LGC board • Check if the connectors CN355 and CN357 are disconnected. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 5 Clear the status counter 1. [0]+ [8] Power ON. 2. Key in "2002", then press [START]. 3. Change the current status counter value (08-2002) "5", "6", "7", "9", "22", "23", "24", "25", "27", "29", or "63 to 66". * The status counter value is as follows in the following cases. - The error occurred during warming-up: "5" or "6" The error occurred after the equipment has become ready: "7". - The temperature detected by the center thermistor is 220°C or higher, the temperature detected by the edge thermistor is 235°C or higher : "9", "22", "23", "25", "27" or "29" - The error occurred during printing: "24", "25", or "64 to 66". - The error occurred during energy saving: "27". - A paper jam occurred: "29".

• Code: C449
• Description: IH coil abnormality after abnormality judgment(temperature abnormality at high temperature)
• Causes:
• Remedy: 1 Power voltage Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) 2 Thermistor • Check if the center and edge thermistor are installed properly. • Check if the harnesses of the center and edge thermistor are open circuited. • Check if the connectors of the center and edge thermistor are disconnected (J1101). 3 Switching regulator and fuser unit • Is the fuser unit installed correctly? • Check if the IH-COIL is broken. • Check if the terminal of the IH-COIL is attached securely. • Check if the thermostat is blown • Check if the drawer connector is damaged or its connection is detected. • Check if the connectors of the power supply unit are disconnected (CN504, CN506). • Check if the power supply unit is abnormal. 4 LGC board • Check if the connectors CN355 and CN357 are disconnected. • Check if the conductor pattern on the LGC board is short circuited or open circuited. 5 Clear the status counter 1. [0]+ [8] Power ON. 2. Key in "2002", then press [START]. 3. Change the current status counter value (08-2002) "5", "6", "7", "9", "22", "23", "24", "25", "27", "29", or "63 to 66". * The status counter value is as follows in the following cases. - The error occurred during warming-up: "5" or "6" The error occurred after the equipment has become ready: "7". - The temperature detected by the center thermistor is 220°C or higher, the temperature detected by the edge thermistor is 235°C or higher : "9", "22", "23", "25", "27" or "29" - The error occurred during printing: "24", "25", or "64 to 66". - The error occurred during energy saving: "27". - A paper jam occurred: "29".

• Code: C471
• Description: IH board initialization abnormality
• Causes: Side cover interlock switch. LGC board FIL board IH board Power supply
• Remedy: Power supply • Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) Side cover interlock switch • Connector check (J1008, CN354) • Harness check Fuser unit • Drawer connector check • Thermostat check • Unit check LGC board • Connector check (CN357) • Board check FIL board • Connector check • Board check IH board • Connector check (CN561, CN562, CN563) • Board check Status counter 1. [0], [8] Power ON. 2. Key in “2002”, then press [START]. 3. Change the current status counter value (08-2002) "11" to "0" 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state. Connector and harness • Check the connectors and harnesses of the parts replaced just before C471 occurred. • Check the connectors which connect the equipment and LCF/PFP.

• Code: C472
• Description: Power supply abnormality
• Causes: Side cover interlock switch. LGC board FIL board IH board Power supply
• Remedy: Power supply • Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) Side cover interlock switch • Connector check (J1008, CN354) • Harness check Fuser unit • Drawer connector check • Thermostat check • Unit check LGC board • Connector check (CN357) • Board check FIL board • Connector check • Board check IH board • Connector check (CN561, CN562, CN563) • Board check Status counter 1. [0], [8] Power ON. 2. Key in “2002”, then press [START]. 3. Change the current status counter value (08-2002) "11" to "0" 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state. Connector and harness • Check the connectors and harnesses of the parts replaced just before C471 occurred. • Check the connectors which connect the equipment and LCF/PFP.

• Code: C473
• Description: Surge pressure detection / power and voltage upper limit abnormality
• Causes: Power supply IH board
• Remedy: Power supply • Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) Fuser unit • Drawer connector check • Thermostat check • Unit check IH board • Connector check (CN357, CN561, CN562, CN563) • Board check Status counter 1. [0], [8] Power ON. 2. Key in “2002”, then press [START]. 3. Change the current status counter value (08-2002) "13" or "16" to "0". 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.

• Code: C474
• Description: Power and voltage lower limit abnormality
• Causes: Power supply IH board
• Remedy: Power supply • Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) Fuser unit • Drawer connector check • Thermostat check • Unit check IH board • Connector check (CN357, CN561, CN562, CN563) • Board check Status counter 1. [0], [8] Power ON. 2. Key in “2002”, then press [START]. 3. Change the current status counter value (08-2002) "13" or "16" to "0". 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.