• Code: E674-0004
• Description: Failure in communication of FAX board
  Failure in access of the modem IC which is used with OnBoardFax
• Remedy: 1. Check the connection between FAX Board and Main controller PCB. 2. Replace the FAX Board. 3. Replace the Main Controller PCB. (Main Controller PCB 2 for 1-line Fax Board, and Main Controller PCB 1 for 2-/3-/4-line Fax Board)

• Code: E674-0008
• Description: Failure in communication of FAX board
  Failure in access of the port IC that is be used with OnBoardFax
• Remedy: 1. Check the connection between FAX Board and Main controller PCB. 2. Replace the FAX Board. 3. Replace the Main Controller PCB. (Main Controller PCB 2 for 1-line Fax Board, and Main Controller PCB 1 for 2-/3-/4-line Fax Board)

• Code: E674-000C
• Description: Failure in communication of FAX board
  Failure is detected in access of the modem IC and port IC that are used with OnBoardFax
• Remedy: 1. Check the connection between FAX Board and Main controller PCB. 2. Replace the FAX Board. 3. Replace the Main Controller PCB. (Main Controller PCB 2 for 1-line Fax Board, and Main Controller PCB 1 for 2-/3-/4-line Fax Board)

• Code: E674-0010
• Description: Failure in communication of FAX board
  Failure in opening of the timer device to be used with OnBoard Fax
• Remedy: Replace the Main Controller PCB. (Main Controller PCB 2 for 1-line Fax Board, and Main Controller PCB 1 for 2-/3-/4-line Fax Board)

• Code: E674-0011
• Description: Failure in communication of FAX board
  Failure in starting of the timer device which is used with OnBoardFax
• Remedy: Replace the Main Controller PCB. (Main Controller PCB 2 for 1-line Fax Board, and Main Controller PCB 1 for 2-/3-/4-line Fax Board)

• Code: E674-0030
• Description: Failure in communication of FAX board
  Error in checksum of USB-FAX MAINROM
• Remedy: Get in the download mode from the Service Mode when the power is turned ON and execute downloading of USBFAX MAINROM.

• Code: E674-0100
• Description: Failure in communication of FAX board
  Logging was failed after completion of fax communication.
• Remedy: Turn OFF and then ON the power. The logs collected so far are deleted.

• Code: E674-0200
• Description: Failure in communication of FAX board
  An error occurred when accessing the HDD.
• Remedy: 1. Turn OFF and then ON the power. 2. Format and upgrade the entire HDD. 3. Replace the HDD. 4. Replace the Main Controller PCB. (Main Controller PCB 2 for 1-line Fax Board, and Main Controller PCB 1 for 2-/3-/4-line Fax Board)