• Code: E590-0002
• Description: The punch home position sensor (PI3P) is faulty. The punch motor (M1P) is faulty. The punch driver PCB is faulty.
  The puncher does not return to home position when the punch motor has been driven for 200 msecs.

• Code: E593-0001
• Description: The horizontal registration home position sensor (PI1P) is faulty. The horizontal registration motor (M1P) is faulty. The punch driver PCB is faulty.
  The puncher does not leave home position when the horizontal registration motor has been driven for 4 secs.

• Code: E593-0002
• Description: The horizontal registration home position sensor (PI1P) is faulty. The horizontal registration motor (M1P) is faulty. The punch driver PCB is faulty.
  The puncher does not return to home position when the horizontal registration motor has been driven for 4 secs.

• Code: E5F0-0001
• Description: The paper positioning plate home position sensor (PI7S) is faulty. The paper positioning plate motor (M4S) is faulty. The saddle stitcher controller PCB is faulty.
  The paper positioning plate home position sensor does not turn on when the paper positioning plate motor has been driven for about 1.3 secs.

• Code: E5F0-0002
• Description: The paper positioning plate home position sensor (PI7S) is faulty. The paper positioning plate motor (M4S) is faulty. The saddle stitcher controller PCB is faulty.
  The paper positioning plate home position sensor does not turn off 1 sec after the paper positioning plate motor has been driven for 1 sec.

• Code: E5F1-0001
• Description: The folding motor clock sensor (PI4S) is faulty. The paper folding home position sensor (PI21S) is faulty. The folding motor (M2S) is faulty. The saddle stitcher controller PCB is faulty.
  The number of detection pulses of the folding motor clock sensor drops below a specific value.

• Code: E5F1-0002
• Description: The folding motor clock sensor (PI4S) is faulty. The paper folding home position sensor (PI21S) is faulty. The folding motor (M2S) is faulty. The saddle stitcher controller PCB is faulty.
  The state of the paper folding home position sensor does not change when the folding motor has been driven for 3 secs.

• Code: E5F2-0001
• Description: The guide home position sensor (PI13S) is faulty. The guide motor (M3S) is faulty. The saddle stitcher controller PCB is faulty.
  The guide home position sensor does not turn on when the guide motor has been driven for about 0.5 sec.