• Code: C0000
• Description: Lower Drive Motor’s failure to turn
  The Lock signal remains HIGH for a continuous 1-sec. or more period 1sec. after the motor is energized.
• Remedy: 1 Lower Drive Motor turns when the Start key is pressed NO Correct drive coupling. 2 Lower Drive Motor operation: the voltage across PJ16A-5 on the Master Board and GND is DC5V (motor deenergized) and DC0V (motor energized) when the Start key is pressed. NO Change Master Board. 3 The voltage across PJ16A-4 on the Master Board and GND is DC5V (motor deenergized) and DC0V (motor energized) when the Start key is pressed. YES Change Master Board. NO Change motor.

• Code: C0001
• Description: Lower Drive Motor turning at abnormal timing
  The Lock signal remains LOW for a continuous 1-sec. or more period 1sec. after the motor is deenergized.
• Remedy: 1 Lower Drive Motor operation: the voltage across PJ16A-5 on the Master Board and GND is DC5V after the malfunction has been reset. NO Change Master Board. 2 The voltage across PJ16A-4 on the Master Board and GND is DC5V after the malfunction has been reset. YES Change Master Board. NO Change motor.

• Code: C0010
• Description: Upper Drive Motor’s failure to turn
  The Lock signal remains HIGH for a continuous 1-sec. or more period 1sec. after the motor is energized.
• Remedy: 1 Upper Drive Motor turns when the Start key is pressed NO Correct drive coupling. 2 Upper Drive Motor operation: the voltage across PJ11A-9 on the Master Board and GND is DC5V (motor deenergized) and DC0V (motor energized) when the Start key is pressed. NO Change Master Board. 3 The voltage across PJ11A-8 on the Master Board and GND is DC5V (motor deenergized) and DC0V (motor energized) when the Start key is pressed. YES Change Master Board. NO Change motor.

• Code: C0011
• Description: Upper Drive Motor turning at abnormal timing
  The Lock signal remains LOW for a continuous 1-sec. or more period 1sec. after the motor is deenergized.
• Remedy: 1 Upper Drive Motor operation: the voltage across PJ11A-9 on the Master Board and GND is DC5V after the malfunction has been reset. NO Change Master Board. 2 The voltage across PJ11A-8 on the Master Board and GND is DC5V after the malfunction has been reset. YES Change Master Board. NO Change motor.

• Code: C004A
• Description: Optical Section Cooling Fan Motor’s failure to turn
  The Lock signal remains HIGH 1sec. after the motor is energized.
• Remedy: 1 Optical Section Cooling Fan Motor operation: the voltage across PJ10A-2 on the Master Board and GND is DC24V (motor deenergized) and DC0V (motor energized) when the Start key is pressed. NO Change Master Board. 2 The voltage across PJ10A-3 on the Master Board and GND is DC24V (motor deenergized) and DC0V (motor energized) when the Start key is pressed. YES Change Master Board. NO Change motor.

• Code: C004b
• Description: Optical Section Cooling Fan Motor turning at abnormal timing
  The Lock signal remains LOW 1sec. after the motor is deenergized.
• Remedy: 1 Optical Section Cooling Fan Motor operation: the voltage across PJ10A-2 on the Master Board and GND is DC24V after the malfunction has been reset. NO Change Master Board. 2 The voltage across PJ10A-3 on the Master Board and GND is DC24V after the malfunction has been reset. YES Change Master Board. NO Change motor.

• Code: C004C
• Description: Ventilation Fan Motor’s failure to turn
  • The Lock signal remains HIGH for a continuous 12sec. or more period while the motor is energized (turning at high speed) when the Power Switch is turned ON. • The Lock signal remains HIGH for a continuous 3sec. or more period while the motor is energized (turning at high speed) during a copy cycle.
• Remedy: 1 Ventilation Fan Motor operation: the voltage across PJ20A-1 on the Master Board and GND is DC24V during high-speed rotation and DC12V during low-speed rotation after the malfunction has been reset. NO Change Master Board. 2 The voltage across PJ20A-3 on the Master Board and GND is DC0V after the malfunction has been reset. YES Change Master Board. NO Change motor.

• Code: C004E
• Description: Power Supply Unit Cooling Fan Motor’s failure to turn
  The Lock signal remains HIGH for a continuous 1-sec. or more period 5sec. after the motor is energized (turning at high speed).
• Remedy: 1 Power Supply Unit Cooling Fan Motor operation: the voltage across PJ36A-11 on the Master Board and GND is DC15V during low-speed rotation and DC24V during high-speed rotation when the Start key is pressed. NO Change Master Board. 2 The voltage across PJ36A-9 on the Master Board and GND is DC0V (motor energized) when the Start key is pressed. YES Change Master Board. NO Change motor.