• Code: 876
• Description: Log Data Error
• Causes:

• Code: 877
• Description: HDD Data Overwrite Security SD card error
• Causes: Defective SD card (M352) SD card (M352) not installed • Replace the NVRAM and then install the new SD card (M352). • Check and reinstall the SD card (M352).

• Code: 878
• Description: TPM system authentication error
• Causes: Incorrect updating for the system firmware Defective flash ROM on the controller board • Replace the controller board.

• Code: 900
• Description: Controller counter errorn error
• Causes: • Replace the NVRAM if the error is frequent.

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

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

• Code: 990
• Description: Software performance error
• Causes: • Software defective; reboot the machine • Internal parameter incorrect • Insufficient working memory • When this SC occurs, the file name, address, and data will be stored in NVRAM. Note the above data and the situation in which this SC occurs. Then report the data and conditions to your technical control center.

• Code: 991
• Description: Software continuity error error
• Causes: • Software bug; reboot the machine • Internal parameter incorrect • Insufficient working memory