• Code: 764
• Description: Paper position sensor slide motor error
  The paper position sensor moves but is not detected at the home position within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Motor harness disconnected, loose, defective • Defective motor
• Remedy: 1. Check the connections to the paper position sensor slide motor. 2. Replace the paper position sensor slide motor.

• Code: 765
• Description: Fold unit bottom fence motor error
  The bottom fence of the fold unit moves but is not detected at the home position within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Motor harness disconnected, loose, defective • Defective motor
• Remedy: 1. Check the connections to the fold unit bottom fence motor. 2. Defective fold unit bottom fence motor.

• Code: 766
• Description: Stacking sponge roller motor error
  The sponge roller moves but is not detected at the home position within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Motor harness disconnected, loose, defective • Defective motor
• Remedy: 1. Check the connections to the stacking sponge roller motor. 2. Defective stacking sponge roller motor.

• Code: 767
• Description: Stack junction gate motor error The stack junction gate moves but is not detected at the home position within the specified time. The 1st detection failure issues a jam error, and the 2nd failure issues this SC code.
• Causes: • Motor harness disconnected, loose, defective • Defective motor
• Remedy: 1. Check the connections to the stack junction gate motor. 2. Defective stack junction gate.

• Code: 791
• Description: Bridge unit error
  The machine recognizes the finisher, but does not recognize the bridge unit.
• Causes: • Defective connector • Broken harness
• Remedy: 1. Check the connections between the bridge unit and the machine. 2. Install a new bridge unit.

• Code: 792
• Description: Finisher error The machine does not recognize the finisher, but recognizes the bridge unit.
• Causes: • Defective connector • Defective harness • Incorrect installation
• Remedy: 1. Check the connections between the finisher and the machine. 2. Install a new finisher.

• Code: 817
• Description: Boot loader error
  The boot loader cannot read one of the following: self-diagnostic module, kernel, or one of the files of the root file system, or the check of one of these items on the system SD card failed.
• Causes: • File or module on the system SD card is corrupted • File or module on the system SD card is illegal • Make sure that the system SD card is the one designed for the machine • Replace controller board.
• Remedy:

• Code: 819
• Description: Fatal error
• Causes: [696E] Process error System completely down • Defective RAM DIMM • Defective controller • Software error 1. Check and/or replace the RAM DIMM. 2. Replace the controller. [766D] Memory error Unexpected system memory size • Defective RAM DIMM • Defective controller • Software error 1. Check and/or replace the RAM DIMM. 2. Replace the controller. [4361] Kernel stop error The cache error trap occurs in the CPU. • CPU cache error 1. Replace the controller. - Kernel stop error An error in the operation system (An error message is output.) • Defective CPU • Defective memory • Defective flash memory • Incorrect software 1. Replace the memory. 1. Replace the controller.
• Remedy: