• Code: 878
• Description: TPM system authentication error
  The system firmware is not authenticated by TPM (security chip).
• Causes: • Incorrect updating for the system firmware • Defective flash ROM on the controller board
• Remedy: Replace the controller board.

• Code: 880
• Description: File format converter error
  The file format converter does not respond.
• Causes: • Defective file format converter
• Remedy: Replace the file format converter.

• Code: 881
• Description: Management area error
• Causes: This is a software error than can occur: • At login • When a print job was received • When WEB browser was opened
• Remedy: Cycle the machine off/on.

• Code: 899
• Description: Software error
  A software error occurred in the GW controller.
• Causes: • Cycle the machine off/on • Update controller firmware • Controller board defective
• Remedy:

• Code: 900
• Description: Electric counter error
  Abnormal data in the counters
• Causes: • Defective NVRAM • Defective controller
• Remedy: 1. Check the connection between the NVRAM and controller. 2. Replace the NVRAM. 3. Replace the controller.

• Code: 910...914
• Description: External Controller Error
  The external controller alerted the machine about an error.
• Causes: • Please refer to the instructions for the external controller (application)
• Remedy: Please refer to the instructions for the external controller (application).

• Code: 920
• Description: Printer application error
  An error is detected in the printer application program.
• Causes: • Defective software • Unexpected hardware resource (e.g., memory shortage).
• Remedy: 1. Software defective; switch off/on, or change the controller firmware if the problem is not solved 2. Insufficient memory

• Code: 921
• Description: Printer font error
  A necessary font is not found in the SD card.
• Causes: • A necessary font is not found in the SD card. • The SD card data is corrupted.
• Remedy: Check that the SD card has the correct data.