• Code: E746 0000
• Description: Main Controller PCB error
• Causes: Microcomputer error
• Remedy: Install the firmware according to the model Replace the Main Controller PCB.

• Code: E748 2012
• Description: System error
• Causes: System error
• Remedy: Contact the service company office

• Code: E760 0000
• Description: Firmware error
• Causes: An error due to the controller software occurred so that print could not be proceeded.
• Remedy: Due to firmware error, the possibility of solving the error by replacing the Main Controller PCB is low. Check the downloaded firmware again.

• Code: E805 0000
• Description: Main Fan error
• Causes: Main Fan failure is detected.
• Remedy: 1. Check the Main Fan or the connector. 2. Replace the Main Fan 3. Replace the Main Controller PCB.