• 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: 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 fuser unit heater harness Reconnect the fuser unit heater harness. 3 Connection failure of the eject sensor harness Reconnect the eject sensor harness. 4 Connection failure of the lowvoltage power supply harness Reconnect the low-voltage power supply 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: 0800
• Description: An error occurred in the internal temperature sensor.
• Remedy: 1 Connection failure of the internal temperature sensor harness Reconnect the internal temperature sensor harness. 2 Internal temperature sensor failure Replace the main frame L ASSY. 3 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. Reset counters for consumable parts (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 of the low-voltage power supply PCB (error code: 0900) 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 may occur even when the low-voltage power supply PCB ASSY is replaced. Ask the user to review the installation environment. • Do not reset the power supply PCB counter before replacing it with a new one. It may cause fire.

• Code: 0A02
• Description: Detected a main fan failure.
• Remedy: 1 Connection failure of the main fan harness Reconnect the main fan harness. 2 Connection failure of the toner amount detection sensor PCB harness (light emission) Reconnect the toner amount detection sensor PCB harness (light emission). 3 Main fan failure Replace the main fan. 4 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. 5 Toner amount detection sensor PCB (light emission) failure Replace the toner amount detection sensor PCB ASSY (light emission). 6 Main PCB failure Replace the main PCB ASSY.

• Code: 0B01
• Description: An error occurred in the high-voltage power supply PCB ASSY while operating.
• Remedy: 1 Connection failure of the HVPS flat cable Reconnect the HVPS flat cable. 2 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 0B02
• Description: An error occurred in the high-voltage power supply PCB ASSY when the machine was in the ready state.
• Remedy: 1 Connection failure of the HVPS flat cable Reconnect the HVPS flat cable. 2 High-voltage power supply PCB failure Replace the high-voltage power supply PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: 1701
• Description: Detected a TT fan failure.
• Remedy: 1 Malfunction of the TT control PCB Install the latest main firmware. 2 Connection failure of the TT fan harness Reconnect the TT fan harness. 3 LT/TT connector failure (machine side or TT side) Replace the LT/TT connector of the machine side or TT side. 4 TT fan failure Replace the TT fan. 5 TT control PCB failure Replace the TT control PCB. 6 Main PCB failure Replace the main PCB ASSY.

• Code: 1801
• Description: A communication error occurred between the ASIC and T2LT control PCB in the engine. (LT only)
• Remedy: 1 Malfunction of the LT control PCB Install the latest main firmware. 2 An LT/TT connector failure (machine side or LT side) Replace the appropriate LT/TT connector of the machine side or LT side. 3 An LT control PCB failure Replace the appropriate LT control PCB. 4 Main PCB failure Replace the main PCB ASSY.