• Code: 744-0001-00
• Description: Language file error
• Causes: The language file in the HDD was not supported by the version of Bootable.
• Remedy: Reinstall the correct language file or system software using SST or a USB memory.

• Code: 744-2000-00
• Description: Controller firmware mismatch
• Causes: Invalid controller firmware was detected.
• Remedy: This error normally does not occur. This error occurs when using the HDD which was used with another model. Replace the HDD with the one which was originally installed or a new one for the model.

• Code: 744-4000-05
• Description: Error due to the DC Controller PCB not compatible with the model
• Causes: The DC Controller PCB which was used with another model was detected.
• Remedy: [Remedy] Replace the DC Controller PCB (UN01). (Unit of replacement: DC CONTROLLER PCB ASSEMBLY) [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

• Code: 746-0003-00
• Description: Image Analysis Board error
• Causes: Different Image Analysis PCB model.
• Remedy: Perform the following in the order while checking whether the error is cleared. 1. Check that the Image Analysis Board is installed properly by removing and then installing it again. 2. Turn OFF and then ON the main power, and check whether the error is cleared. 3. After replacing the Image Analysis Board, reinstall the firmware of the Image Analysis Board or the system software which version is supported by this model using SST or a USB memory.

• Code: 746-0021-00
• Description: Image Analysis Board error
• Causes: Self-check NG of Image Analysis Board
• Remedy: Perform the following in the order while checking whether the error is cleared. 1. Check that the Image Analysis Board is installed properly by removing and then installing it again. 2. Turn OFF and then ON the main power, and check whether the error is cleared. 3. After replacing the Image Analysis Board, reinstall the firmware of the Image Analysis Board or the system software which version is supported by this model using SST or a USB memory.

• Code: 746-0022-00
• Description: Image Analysis Board error
• Causes: Wrong version of the Image Analysis Board was detected.
• Remedy: Perform the following in the order while checking whether the error is cleared. 1. Reinstall the firmware of the Image Analysis Board or the system software which version is supported by this model using SST or a USB memory. 2. After replacing the Image Analysis Board, perform step 1.

• Code: 746-0023-00
• Description: Image Analysis Board error
• Causes: Communication from the Image Analysis Board could not be detected.
• Remedy: Perform the following in the order while checking whether the error is cleared. 1. Check that the Image Analysis Board is installed properly by removing and then installing it again. 2. Turn OFF and then ON the main power, and check whether the error is cleared. 3. After replacing the Image Analysis Board, reinstall the firmware of the Image Analysis Board or the system software which version is supported by this model using SST or a USB memory.

• Code: 746-0024-00
• Description: Image Analysis Board error
• Causes: An error in the operation of the Image Analysis Board was detected.
• Remedy: Perform the following in the order while checking whether the error is cleared. 1. Check that the Image Analysis Board is installed properly by removing and then installing it again. 2. Turn OFF and then ON the main power, and check whether the error is cleared. 3. After replacing the Image Analysis Board, reinstall the firmware of the Image Analysis Board or the system software which version is supported by this model using SST or a USB memory.