• Code: E408
• Description: New transfer belt unit release error. When a new product status is not cleared after a new Transfer Belt Unit has been set.
• Causes: • Control Board (PWB-A)
• Remedy: 1 Remove the Unit and set it again. 2 Replace the PWB-A.

• Code: E500
• Description: Fuser warm-up error (Heat Roll Lamp). When warm-up is not completed since the Heat Roller Thermistor does not detect the specified temperature if the predetermined has elapsed time after a start of warm-up.
• Causes: • Fuser Unit • Heater Lamp Control Board (PWB-T) • Power Supply (PU1) • Control Board (PWB-A)
• Remedy: 1 Replace the Fuser Unit. 2 Replace the PWB-T. 3 Replace the PWB-A. 4 Replace the PU1.

• Code: E501
• Description: Fuser warm-up error (Pressure Roll Lamp). When warm-up is not completed since the Pressure Roller Thermistor does not detect the specified temperature if the predetermined time has elapsed after a start of warm-up.
• Causes: • Fuser Unit • Heater Lamp Control Board (PWB-T) • Power Supply (PU1) • Control Board (PWB-A)
• Remedy: 1 Replace the Fuser Unit. 2 Replace the PWB-T. 3 Replace the PWB-A. 4 Replace the PU1.

• Code: E510
• Description: Extremely low fuser temperature (Heat Roll Lamp). When the temperature detected by the Heat Roller Thermistor drops below the specified temperature for longer than the predetermined time.
• Causes: • Fuser Unit • Heater Lamp Control Board (PWB-T) • Power Supply (PU1) • Control Board (PWB-A)
• Remedy: 1 Replace the Fuser Unit. 2 Replace the PWB-T. 3 Replace the PWB-A. 4 Replace the PU1.

• Code: E511
• Description: Extremely low fuser temperature (Pressure Roll Lamp). When the temperature detected by the Pressure Roller Thermistor drops below the specified temperature for longer than the predetermined time.
• Causes: • Fuser Unit • Heater Lamp Control Board (PWB-T) • Power Supply (PU1) • Control Board (PWB-A)
• Remedy: 1 Replace the Fuser Unit. 2 Replace the PWB-T. 3 Replace the PWB-A. 4 Replace the PU1.

• Code: E520
• Description: Extremely high fuser temperature (Heat Roll Lamp). When the temperature detected by the Heat Roller Thermistor rises above the specified temperature for longer than the predetermined time.
• Causes: • Fuser Unit • Heater Lamp Control Board (PWB-T) • Power Supply (PU1) • Control Board (PWB-A)
• Remedy: 1 Replace the Fuser Unit. 2 Replace the PWB-T. 3 Replace the PWB-A. 4 Replace the PU1.

• Code: E521
• Description: Extremely high fuser temperature (Pressure Roll Lamp). When the temperature detected by the Pressure Roller Thermistor rises above the specified temperature for longer than the predetermined time.
• Causes: • Fuser Unit • Heater Lamp Control Board (PWB-T) • Power Supply (PU1) • Control Board (PWB-A)
• Remedy: 1 Replace the Fuser Unit. 2 Replace the PWB-T. 3 Replace the PWB-A. 4 Replace the PU1.

• Code: E530
• Description: New Fuser Unit release error. When a new product status is not cleared after a new Fuser Unit has been set.
• Causes: • Control Board (PWB-A)
• Remedy: 1 Remove the Unit and set it again. 2 Replace the PWB-A.