• Code: E591-8001
• Description: Scrap full detection error (External 2 Hole Puncher)
  The voltage of the light received is 3.0 V or less even when the light emitting duty of the Scrap Full Detector Sensor has been increased to 66% or more.
• Remedy: 1. The wiring between the Scrap Full Detector PCB and Punch Controller PCB is faulty. 2. The Scrap Full Detector PCB is faulty. 3. The Punch Controller PCB is faulty. 4. The Finisher Controller PCB is faulty.

• Code: E591-8002
• Description: Scrap full detection error (External 2 Hole Puncher)
  The voltage of the light received is 2.0 V or more even when the light emitting duty of the Scrap Full Detector Sensor has been decreased to 0%.
• Remedy: 1. The Scrap Full Detector PCB is faulty. 2. The Punch Controller PCB is faulty. 3. The Finisher Controller PCB is faulty.

• Code: E592-8001
• Description: Trailing Edge Sensor error (External 2 Hole Puncher)
  The voltage of the light received is 2.5 V or less even when the light emitting duty of the Trailing Edge Sensor (LED5, PTR5) has been increased to 66% or more.
• Remedy: 1. The wiring between the LED PCB/Photosensor PCB and Punch Controller PCB is faulty. 2. The LED PCB and Photosensor PCB is faulty. 3. The Punch Controller PCB is faulty. 4. The Finisher Controller PCB is faulty.

• Code: E592-8002
• Description: Trailing Edge Sensor error (External 2 Hole Puncher)
  The voltage of the light received is 2.0 V or more even when the light emitting duty of the Trailing Edge Sensor has been decreased to 0%.
• Remedy: 1. The LED PCB and Photosensor PCB is faulty. 2. The Punch Controller PCB is faulty. 3. The Finisher Controller PCB is faulty.

• Code: E592-8003
• Description: Horizontal Registration Sensor 1 error (External 2 Hole Puncher)
  The voltage of the light received is 2.5 V or less even when the light emitting duty of the Horizontal Registration Sensor 1 (LED1, PTR1) has been increased to 66% or more.
• Remedy: 1. The wiring between the LED PCB/Photosensor PCB and Punch Controller PCB is faulty. 2. The LED PCB and Photosensor PCB is faulty. 3. The Punch Controller PCB is faulty. 4. The Finisher Controller PCB is faulty.

• Code: E592-8004
• Description: Horizontal Registration Sensor 1 error (External 2 Hole Puncher)
  The voltage of the light received is 2.0 V or more even when the light emitting duty of the Horizontal Registration Sensor 1 (LED1, PTR1) has been decreased to 0%.
• Remedy: 1. The LED PCB and Photosensor PCB is faulty. 2. The Punch Controller PCB is faulty. 3. The Finisher Controller PCB is faulty.

• Code: E592-8005
• Description: Horizontal Registration Sensor 2 error (External 2 Hole Puncher)
  The voltage of the light received is 2.5 V or less even when the light emitting duty of the Horizontal Registration Sensor 2 (LED2, PTR2) has been increased to 66% or more.
• Remedy: 1. The wiring between the LED PCB/Photosensor PCB and Punch Controller PCB is faulty. 2. The LED PCB and Photosensor PCB is faulty. 3. The Punch Controller PCB is faulty. 4. The Finisher Controller PCB is faulty.

• Code: E592-8006
• Description: Horizontal Registration Sensor 2 error (External 2 Hole Puncher)
  The voltage of the light received is 2.0 V or more even when the light emitting duty of the Horizontal Registration Sensor 2 (LED2, PTR2) has been decreased to 0%.
• Remedy: 1. The LED PCB and Photosensor PCB is faulty. 2. The Punch Controller PCB is faulty. 3. The Finisher Controller PCB is faulty.