Description: Thermistor/heater 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.
Remedy: 1.Check the power voltage (1) Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) 2.Check the thermistors (1) Check if the connectors are disconnected. (2) Check if the center and side thermistors (front, rear) are in contact with the surface of the fuser roller properly? (3) Check if the harnesses of the center and side thermistors (front, rear) are open circuited. 3. Check the heater (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 connectors CN455). (5) Check if the IH control board is abnormal. • Replace the IH control board. 4. Check the LGC board (1) Check if the connectors CN332,CN334 are disconnected. (2) Check if the conductor pattern on the LGC board is short circuited or open circuited. (3) Replace the LGC board. 5. Clear the status counter After repairing the matter which caused the error [C411/C412], perform the following: (1) Turn ON the power while [0] and [8] are pressed simultaneously. (2) Key in "400", then press [START]. (3) Change the current status counter value "1" or "2" to "0", then press [ENTER] or [INTERRUPT] (to cancel [C411/C412]). (4) Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C412
Description: Thermistor/heater 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.
Remedy: 1.Check the power voltage (1) Check if the power voltage is normal.(Is the voltage during the operation ±10% of the rated voltage?) 2.Check the thermistors (1) Check if the connectors are disconnected. (2) Check if the center and side thermistors (front, rear) are in contact with the surface of the fuser roller properly? (3) Check if the harnesses of the center and side thermistors (front, rear) are open circuited. 3. Check the heater (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 connectors CN455). (5) Check if the IH control board is abnormal. • Replace the IH control board. 4. Check the LGC board (1) Check if the connectors CN332,CN334 are disconnected. (2) Check if the conductor pattern on the LGC board is short circuited or open circuited. (3) Replace the LGC board. 5. Clear the status counter After repairing the matter which caused the error [C411/C412], perform the following: (1) Turn ON the power while [0] and [8] are pressed simultaneously. (2) Key in "400", then press [START]. (3) Change the current status counter value "1" or "2" to "0", then press [ENTER] or [INTERRUPT] (to cancel [C411/C412]). (4) Turn the power OFF and then back ON. Make sure that the equipment enters the normal ready state.
Code: C443
Description: Heater abnormality after abnormality judgment (not reaching to intermediate temperature)
Remedy: 1,2.3. Check the thermistors, Heater and LGC board Check the above components following the procedures 1, 2 and 3 for [C411/C412]. 4. Clear the status counter Change the current status counter value (08-400) "3", "5" , "6" , "9" , "19" , "21" , "22" , "23" , "24" , "25" , "27" or "29" to "0" for [C44X], taking the same procedure as that for [C41X]. • The status counter value is as follows in the following cases. - The error occurred during warming-up: "3", "5" or "6" - The error occurred after the equipment has become ready: "7" - The temperature detected by the center thermistor is 240°C or higher, the temperature detected by the side thermistor is 250°C or higher or the temperature detected by the edge thermistor is 270°C or higher: "9", "19", "21", "22", "23", "25", "27" or "29". - The error occurred during printing: "24" or "25" - The error occurred during energy saving: "26" or "27" - A paper jam occurred: "28" or "29"
Code: C445
Description: Heater abnormality after abnormality judgment (prerunning end temperature abnormality)
Remedy: 1,2.3. Check the thermistors, Heater and LGC board Check the above components following the procedures 1, 2 and 3 for [C411/C412]. 4. Clear the status counter Change the current status counter value (08-400) "3", "5" , "6" , "9" , "19" , "21" , "22" , "23" , "24" , "25" , "27" or "29" to "0" for [C44X], taking the same procedure as that for [C41X]. • The status counter value is as follows in the following cases. - The error occurred during warming-up: "3", "5" or "6" - The error occurred after the equipment has become ready: "7" - The temperature detected by the center thermistor is 240°C or higher, the temperature detected by the side thermistor is 250°C or higher or the temperature detected by the edge thermistor is 270°C or higher: "9", "19", "21", "22", "23", "25", "27" or "29". - The error occurred during printing: "24" or "25" - The error occurred during energy saving: "26" or "27" - A paper jam occurred: "28" or "29"
Code: C446
Description: Heater abnormality after abnormality judgment (prerunning end temperature abnormality)
Remedy: 1,2.3. Check the thermistors, Heater and LGC board Check the above components following the procedures 1, 2 and 3 for [C411/C412]. 4. Clear the status counter Change the current status counter value (08-400) "3", "5" , "6" , "9" , "19" , "21" , "22" , "23" , "24" , "25" , "27" or "29" to "0" for [C44X], taking the same procedure as that for [C41X]. • The status counter value is as follows in the following cases. - The error occurred during warming-up: "3", "5" or "6" - The error occurred after the equipment has become ready: "7" - The temperature detected by the center thermistor is 240°C or higher, the temperature detected by the side thermistor is 250°C or higher or the temperature detected by the edge thermistor is 270°C or higher: "9", "19", "21", "22", "23", "25", "27" or "29". - The error occurred during printing: "24" or "25" - The error occurred during energy saving: "26" or "27" - A paper jam occurred: "28" or "29"
Code: C447
Description: Heater abnormality after abnormality judgment (temperature abnormality at ready status)
Remedy: 1,2.3. Check the thermistors, Heater and LGC board Check the above components following the procedures 1, 2 and 3 for [C411/C412]. 4. Clear the status counter Change the current status counter value (08-400) "3", "5" , "6" , "9" , "19" , "21" , "22" , "23" , "24" , "25" , "27" or "29" to "0" for [C44X], taking the same procedure as that for [C41X]. • The status counter value is as follows in the following cases. - The error occurred during warming-up: "3", "5" or "6" - The error occurred after the equipment has become ready: "7" - The temperature detected by the center thermistor is 240°C or higher, the temperature detected by the side thermistor is 250°C or higher or the temperature detected by the edge thermistor is 270°C or higher: "9", "19", "21", "22", "23", "25", "27" or "29". - The error occurred during printing: "24" or "25" - The error occurred during energy saving: "26" or "27" - A paper jam occurred: "28" or "29"