Description: Temperature of the end part didn’t rise by 1 °C when the fuser unit heater was turned ON.
Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset. 1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 8 Main PCB failure Replace the main PCB ASSY.
Code: 050A
Description: The hardware detected a temperature error through the center thermistor or the side thermistor of the fuser unit.
Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset. 1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 8 Main PCB failure Replace the main PCB ASSY.
Code: 050B
Description: When the center thermistor of the fuser unit was lower than the idle temperature, the side thermistor detected a temperature higher than the specified temperature.
Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset. 1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 8 Main PCB failure Replace the main PCB ASSY.
Code: 050C
Description: When the center thermistor of the fuser unit was higher than the idle temperature, the side thermistor detected a temperature lower than the specified temperature.
Remedy: <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset. 1 Connection failure of the center or side thermistor harness of the fuser unit Reconnect the center or side thermistor harness of the fuser unit. 2 Connection failure of the heater harness of the fuser unit Reconnect the heater harness of the fuser unit. 3 Connection failure of the eject sensor PCB harness Reconnect the eject sensor PCB harness. 4 Connection failure of the lowvoltage power supply PCB harness Reconnect the low-voltage power supply PCB harness. 5 Eject sensor PCB failure Replace the eject sensor PCB ASSY. 6 Fuser unit failure Replace the fuser unit. 7 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 8 Main PCB failure Replace the main PCB ASSY.
Code: 0900
Description: Detected irregular power supply for more than 100 times.
Remedy: 1 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. Refer to “Reset irregular power supply detection counter of low-voltage power supply PCB (Function code 88)” to reset the irregular power supply detection counter after the replacement. 2 Main PCB failure Replace the main PCB ASSY. Note: The irregular power supply detection error (Error code 0900) of the low-voltage power supply PCB occurs when there is a large distortion in the power supply voltage supplied to the machine. In this case, if the same power supply is used, the same error might occur again even if the low-voltage power supply PCB ASSY is replaced. For this reason, be sure to ask the user to rearrange the installation environment.
Code: 0A02
Description: Detected a fan failure.
Remedy: 1 Connection failure of the fan harness Reconnect the fan harness. 2 Connection failure of the highvoltage power supply PCB harness Reconnect the high-voltage power supply PCB harness. 3 Fan failure Replace the fan. 4 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 5 Main PCB failure Replace the main PCB ASSY.