• 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: E592-0003
• Description: Upper limit error with Puncher Side Registration Sensor (B5R) (Puncher Unit-BE1/BF1/BG1/BH1). The light-receiving voltage (PTR5) was 2.5V or less despite increase in sensor light-emission (LED5).
• Remedy: 1. Failure of Puncher Side Registration Sensor (PCB3/ PCB4) 2. Failure of Puncher Driver PCB (PCB1). 3. Failure of Finisher Controller PCB.

• Code: E592-0004
• Description: Lower limit error with Puncher Side Registration Sensor (B5R) (Puncher Unit-BE1/BF1/BG1/BH1). The light-receiving voltage (PTR5) was 2.0V or more despite reduction in sensor light-emission (LED5).
• Remedy: 1. Failure of Puncher Side Registration Sensor (PCB3/ PCB4) 2. Failure of Puncher Driver PCB (PCB1). 3. Failure of Finisher Controller PCB.

• Code: E592-0005
• Description: Upper limit error with Puncher Side Registration Sensor (A4R) (Puncher Unit-BE1/BF1/BG1/BH1). The light-receiving voltage (PTR1) was 2.5V or less despite increase in sensor light-emission (LED1).
• Remedy: 1. Failure of Puncher Side Registration Sensor (PCB3/ PCB4) 2. Failure of Puncher Driver PCB (PCB1). 3. Failure of Finisher Controller PCB.

• Code: E592-0006
• Description: Lower limit error with Puncher Side Registration Sensor (A4R) (Puncher Unit-BE1/BF1/BG1/BH1). The light-receiving voltage (PTR1) was 2.0V or more despite reduction in sensor light-emission (LED1).
• Remedy: 1. Failure of Puncher Side Registration Sensor (PCB3/ PCB4) 2. Failure of Puncher Driver PCB (PCB1). 3. Failure of Finisher Controller PCB.

• Code: E592-0007
• Description: Upper limit error with Puncher Side Registration Sensor (B4) (Puncher Unit-BE1/BF1/BG1/BH1). The light-receiving voltage (PTR2) was 2.5V or less despite increase in sensor light-emission (LED2).
• Remedy: 1. Failure of Puncher Side Registration Sensor (PCB3/ PCB4) 2. Failure of Puncher Driver PCB (PCB1). 3. Failure of Finisher Controller PCB.

• Code: E592-0008
• Description: Lower limit error with Puncher Side Registration Sensor (B4) (Puncher Unit-BE1/BF1/BG1/BH1). The light-receiving voltage (PTR2) was 2.0V or more despite reduction in sensor light-emission (LED2).
• Remedy: 1. Failure of Puncher Side Registration Sensor (PCB3/ PCB4) 2. Failure of Puncher Driver PCB (PCB1). 3. Failure of Finisher Controller PCB.