Description: Fuser unit related service call. Thermistor or heater lamp abnormality at power-ON: Abnormality of the thermistor is detected when power is turned ON or the temperature of the fuser roller does not rise in a specified period of time after power is turned ON
Causes: MAIN board Thermistors Heater lamp
Remedy: 1. Check the thermistors 1. Check if the connectors are disconnected. 2. Check if the center, side and edge thermistors are in contact with the surface of the fuser roller properly? 3. Check if the center, side and edge thermistors are not deformed or dirty. 4. Check if the harnesses of the center and edge thermistors are open circuited. 2. Check the heater 1. Check if the heater is broken. 2. Check if the connector of the heater is disconnected. 3. Check if the harnesses are connected properly to the terminals of the heater lamp. 4. Check if the thermostat is blown. 3. Check the MAIN board 1. Check if the connectors CN10 are disconnected. 2. Check if the conductor pattern on the MAIN board is short circuited or open circuited. 3. Replace the MAIN board. 4. Clear the status counter After repairing the matter which caused the error [C411], perform the following: 1. Turn ON the power while [0] and [8] are pressed simultaneously. 2. Key in “2002”, then press [START]. 3. Change the current status counter value “1” or “2” to “0”, then press [OK] (to cancel [C411]). 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C412
Description: Fuser unit related service call. Thermistor/heater lamp abnormality at power-ON: Thermistor abnormality is detected at power-ON or the fuser roller temperature does not rise within a specified period of time after power-ON.
Causes: MAIN board Thermistors Heater lamp
Remedy: 1. Check the thermistors 1. Check if the connectors are disconnected. 2. Check if the center, side and edge thermistors are in contact with the surface of the fuser roller properly? 3. Check if the center, side and edge thermistors are not deformed or dirty. 4. Check if the harnesses of the center and edge thermistors are open circuited. 2. Check the heater 1. Check if the heater is broken. 2. Check if the connector of the heater is disconnected. 3. Check if the harnesses are connected properly to the terminals of the heater lamp. 4. Check if the thermostat is blown. 3. Check the MAIN board 1. Check if the connectors CN10 are disconnected. 2. Check if the conductor pattern on the MAIN board is short circuited or open circuited. 3. Replace the MAIN board. Check the bias plate 1. Check if the fuser unit is tightly screwed to the equipment with no gap. 2. Check if the bias plate in the fuser unit is in contact due to deformation. Check the power supply Replace the switching regulator. 4. Clear the status counter After repairing the matter which caused the error [C412], perform the following: 1. Turn ON the power while [0] and [8] are pressed simultaneously. 2. Key in “2002”, then press [START]. 3. Change the current status counter value “1” or “2” to “0”, then press [OK] (to cancel [C412]). 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C413
Description: Fuser unit related service call. Thermistor abnormality during warming up or in ready status after abnormality judgment.
Causes: MAIN board Thermistors Heater lamp
Remedy: 1 Check the power voltage Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?) 2 Check the each elements of error status Check the abnormal thermistors 08-4570-0: Center thermistor 08-4570-1: Side thermistor 08-4570-2: Edge thermistor 08-4570-5: Error counter 3 Check the thermistors 1. Check if the connectors are disconnected. 2. Check if the center and edge thermistors are in contact with the surface of the fuser roller properly? 3. Check if the center and edge thermistors are not deformed or dirty. 4. Check if the harnesses of the center and edge thermistors are open circuited. 4 Check the heater 1. Check if the heater is broken. 2. Check if the connector of the heater is disconnected. 3. Check if the harnesses are connected properly to the terminals of the heater lamp. 4. Check if the thermostat is blown. 5 Check the MAIN board 1. Check if the connectors are disconnected. 2. Check if the conductor pattern on the MAIN board is short circuited or open circuited. 3. Replace the MAIN board. 6 Clear the status counter After repairing the matter which caused the error [C413 / C414], perform the following: 1. Turn ON the power while [0] and [8] are pressed simultaneously. 2. Key in “2002”, then press [START]. 3. Change the current status counter value “1” or “2” to “0”, then press [OK] (to cancel [C413 / C414]). 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C415
Description: Fuser unit related service call. No recovery even after one minute elapses after low temperature WAIT state is entered during a printing operation.
Causes: MAIN board
Remedy: 1. Check the thermistors 1. Check if the connectors are disconnected. 2. Check if the center and edge thermistors are in contact with the surface of the fuser roller properly? 3. Check if the center and edge thermistors are not deformed or dirty. 4. Check if the harnesses of the center and edge thermistors are open circuited. 2. Check the heater 1. Check if the heater is broken. 2. Check if the connector of the heater is disconnected. 3. Check if the harnesses are connected properly to the terminals of the heater lamp. 4. Check if the thermostat is blown. 3. Check the MAIN board 1. Check if the connectors CN10 are disconnected. 2. Check if the conductor pattern on the MAIN board is short circuited or open circuited. 3. Replace the MAIN board 4. Check the power supply 1. Check if the connectors are disconnected. 2. Replace the switching regulator. 5. Clear the status counter After repairing the matter which caused the error [C415], perform the following: 1. Turn ON the power while [0] and [8] are pressed simultaneously. 2. Key in “2002”, then press [START]. 3. Change the current status counter value “5” to “0”, then press [OK] (to cancel [C415]). 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C447
Description: Fuser unit related service call. While in the READY state, one of the thermistors detected the specified temperature or higher.
Causes: MAIN board
Remedy: 1. Check the thermistors 1. Check if the connectors are disconnected. 2. Check if the center and edge thermistors are in contact with the surface of the fuser roller properly? 3. Check if the center and edge thermistors are not deformed or dirty. 4. Check if the harnesses of the center and edge thermistors are open circuited. 2. Check the heater 1. Check if the heater is broken. 2. Check if the connector of the heater is disconnected. 3. Check if the harnesses are connected properly to the terminals of the heater lamp. 4. Check if the thermostat is blown. 3. Check the MAIN board 1. Check if the connectors CN10 are disconnected. 2. Check if the conductor pattern on the MAIN board is short circuited or open circuited. 3. Replace the MAIN board 4. Check the power supply 1. Check if the connectors are disconnected. 2. Replace the switching regulator. 5. Clear the status counter After repairing the matter which caused the error [C447], perform the following: 1. Turn ON the power while [0] and [8] are pressed simultaneously. 2. Key in “2002”, then press [START]. 3. Change the current status counter value “7”or “24” to “0”, then press [OK] (to cancel [C447]). 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C449
Description: Fuser unit related service call. High temperature detection error
Causes: MAIN board
Remedy: 1. Check the thermistors 1. Check if the connectors are disconnected. 2. Check if the center and edge thermistors are in contact with the surface of the fuser roller properly? 3. Check if the center and edge thermistors are not deformed or dirty. 4. Check if the harnesses of the center and edge thermistors are open circuited. 2. Check the heater 1. Check if the heater is broken. 2. Check if the connector of the heater is disconnected. 3. Check if the harnesses are connected properly to the terminals of the heater lamp. 4. Check if the thermostat is blown. 3. Check the MAIN board 1. Check if the connectors CN10 are disconnected. 2. Check if the conductor pattern on the MAIN board is short circuited or open circuited. 3. Replace the MAIN board 4. Check the power supply 1. Check if the connectors are disconnected. 2. Replace the switching regulator. 5. Clear the status counter After repairing the matter which caused the error [C449], perform the following: 1. Turn ON the power while [0] and [8] are pressed simultaneously. 2. Key in “2002”, then press [START]. 3. Change the current status counter value “9”, “19”, “21”, “22”, “23”, “25”, “27”, “29” or “45” to “0”, then press [OK] (to cancel [C449]). 4. Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.