• Code: 874
• Description: Delete All error 1: HDD
  An error is detected while all of the HDD or NVRAM are formatted physically by the DataOverwriteSecurity Unit.
• Causes: • DataOverwriteSecurity Unit (SD card) not installed • Defective HDD
• Remedy: 1. Install the DataOverwriteSecurity Unit. 2. Replace the HDD.

• Code: 875
• Description: Delete All error 2: Data area
  An error is detected while all of the HDD or NVRAM are formatted logically by the DataOverwriteSecurity Unit.
• Causes: • The logical format for the HDD fails.
• Remedy: Turn the main switch off/on and try the operation again

• Code: 876
• Description: Log Data Error
  An error was detected in the handling of the log data at power on or during machine operation. This can be caused by switching the machine off while it is operating.
• Causes: -001 Log Data Error 1 • Damaged log data file in the HDD Initialize the HDD. -002 Log Data Error 2 • An encryption module not installed 1. Disable the log encryption setting with SP9730-004 ("0" is off.) 2. Install the DESS module. -003 Log Data Error 3 • Invalid log encryption key due to defective NVRAM data 1. Initialize the HDD. 2. Disable the log encryption setting with SP9730-004 ("0" is off.) -004 Log Data Error 4 • Unusual log encryption function due to defective NVRAM data Initialize the HDD. -005 Log Data Error 5 • Installed NVRAM or HDD which is used in another machine 1. Reinstall the previous NVRAM or HDD. 2. Initialize the HDD. -099 Log Data Error 99 • Other than the above causes Ask your supervisor.
• Remedy:

• Code: 877
• Description: HDD Data Overwrite Security SD card error
  The 'all delete' function cannot be executed but the DataOverwriteSecurity Unit is installed and activated.
• Causes: • Defective SD card • SD card not installed
• Remedy: 1. Replace the NVRAM and then install the new SD card. 2. Check and reinstall the SD card.

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