• Code: E744 0002
• Description: Error in language file/BootRom/USB memory
• Causes: Error in language file size Language file exceeds allowable size
• Remedy: Update the set of main controller firmware

• Code: E744 1001
• Description: Error in language file/BootRom/USB memory
• Causes: Versions of Bootable and BootRom do not match
• Remedy: Update the set of main controller firmware

• Code: E744 4000
• Description: Error in language file/BootRom/USB memory
• Causes: Error in engine ID Detected illegal engine connection
• Remedy: 1.Check DC controller 2.Update DC controller firmware 3.Update the set of main controller firmware

• Code: E744 5000
• Description: Error in language file/BootRom/USB memory
• Causes: Error in panel microcomputer
• Remedy: 1.Check panel microcomputer to upgrade the version 2.Update the set of main controller firmware 3.Replace main controller PCBs

• Code: E744 6000
• Description: Communication error with the Wireless LAN PCB
• Causes: Unable to communicate with the Wireless LAN.
• Remedy: 1. Turn OFF and then ON the main power. 2. Check the connection of the Wireless LAN. 3. Install the set of the controller firmware. 4. Replace the Main Controller PCB.

• Code: E744 7000
• Description: Main Controller PCB error
• Causes: An error in the microcomputer which retains fax job information of the Main Controller PCB.
• Remedy: 1. Install the firmware of BKUP. 2. Install the set of the controller firmware. 3. Replace the Main Controller PCB.

• Code: E746 0000
• Description: Error in main controller PCBs
• Causes: Communication error occurred in main controller PCB (other than scanner-related)
• Remedy: Replace main controller PCBs

• Code: E766 8000
• Description: Error in firmware
• Causes: Incorrect digital registration 3 point information
• Remedy: 1.Power off/on 2.Update firmware