• Code: 748-2011-00
• Description: Flash PCB error
• Causes: OS is not found
• Remedy: After replacing the SATA-FLASH PCB (PWB03) (unit of replacement: SATA-FLASH PCB ASS'Y), reinstall the system software using SST or a USB memory.

• Code: 748-2012-00
• Description: Flash PCB error
• Causes: Cannot mount the OS in safe mode startup or No OS startup script
• Remedy: After replacing the SATA-FLASH PCB (PWB03) (unit of replacement: SATA-FLASH PCB ASS'Y), reinstall the system software using SST or a USB memory.

• Code: 748-2021-00
• Description: Main Controller PCB access error
• Causes: Main controller board 2 access errors
• Remedy: Replace the Main Controller PCB 1 (PWB01) (Unit of replacement: MAIN CONTROLLER PCB ASS'Y, 1)

• Code: 748-2023-00
• Description: Main Controller PCB access error
• Causes: Main controller board 2 access errors
• Remedy: Replace the Main Controller PCB 1 (PWB01) (Unit of replacement: MAIN CONTROLLER PCB ASS'Y, 1)

• Code: 748-2024-00
• Description: Main Controller PCB access error
• Causes: Main controller board 2 access errors
• Remedy: Replace the Main Controller PCB 1 (PWB01) (Unit of replacement: MAIN CONTROLLER PCB ASS'Y, 1)

• Code: 748-4910-00
• Description: Main Controller PCB access error
• Causes: Main controller board 2 access errors
• Remedy: Replace the Main Controller PCB 1 (PWB01) (Unit of replacement: MAIN CONTROLLER PCB ASS'Y, 1)

• Code: 748-9000-00
• Description: System error
• Causes: System error
• Remedy: Contact to the sales company.

• Code: 749-0005-00
• Description: Error due to change in hardware configuration
• Causes: There was a change in option configuration that requires turning OFF and then ON the main power. On the screen, only the message "Turn the main power switch OFF and ON" is displayed instead of displaying the error code. The error log is not recorded in COPIER> DISPLAY> ERR.
• Remedy: Turn OFF and then ON the main power. [Reference] Options are recognized again by turning OFF and then ON the main power.