• Code: 792
• Description: Finisher error
  The machine does not recognize the finisher, but recognizes the bridge unit.
• Causes: • Defective connector • Defective harness • Incorrect installation

• Code: 816
• Description: Energy save I/O sub-system error
  Energy saver sub-system detects an error.
• Causes: • Defective controller board

• Code: 817
• Description: Monitor Error
  This is a file detection and electronic file signature check error when the boot loader attempts to read the self-diagnostic module, system kernel, or root system files from the OS Flash ROM, or the items on the SD card in the controller slot are false or corrupted.
• Causes: • OS Flash ROM data defective; change the controller firmware • SD card data defective; use another SD card

• Code: 819
• Description: Fatal kernel error
  Due to a control error, a RAM overflow occurred during system processing. One of the following messages was displayed on the operation panel.
• Causes: • System program defective • Controller board defective
  • Optional board defective • Replace controller firmware

• Code: 820
• Description: Self-diagnostics error: CPU [XXXX]: Detailed error code
  CPU error
• Causes: • System firmware problem • Defective controller

• Code: 821
• Description: Self-diagnostics error: ASIC
• Causes:

• Code: 822
• Description: Self-diagnostic error: HDD
  • HDD device busy for over 31 s. • After a diagnostic command is set for the HDD, but the device remains busy for over 6 s.
• Causes: • HDD defective • HDD harness disconnected, defective • Controller board defective

• Code: 824
• Description: Self-diagnostic error : NVRAM
  NVRAM device does not exist, NVRAM device is damaged, or NVRAM socket damaged.
• Causes: • NVRAM defective • Controller board defective • NVRAM backup battery exhausted • NVRAM socket damaged