• Code: D100
• Display: Print Unable D1 Turn the power off and then back on again.
• Description: An error occurred while initializing the modem.
• Remedy: 1 Connection failure of the modem PCB flat cable Reconnect the modem PCB flat cable. 2 Modem PCB failure Replace the modem PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: D200
• Display: Machine Error Unplug machine, then call Brother.
• Description: Detected that the modem PCB is not connected.
• Remedy: 1 Connection failure of the modem PCB flat cable Reconnect the modem PCB flat cable. 2 Modem PCB failure Replace the modem PCB ASSY. 3 Main PCB failure Replace the main PCB ASSY.

• Code: E000
• Display: Print Unable E0 Turn the power off and then back on again.
• Description: An error occurred in the ROM check sum.
• Remedy:

• Code: E100
• Display: Print Unable E1 Turn the power off and then back on again.
• Description: Program error
• Remedy: • Install the latest firmware.
  1 Main PCB failure Replace the main PCB ASSY.

• Code: E500
• Display: Print Unable E5 Turn the power off and then back on again.
• Description: An error occurred during access to the DRAM in the main PCB ASSY.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: E600
• Display: Print Unable E6 Turn the power off and then back on again.
• Description: Write error in the EEPROM of the main PCB ASSY.
• Remedy: 1 Main PCB failure Replace the main PCB ASSY.

• Code: F900
• Display: Machine Error F9
• Description: The country code was not entered correctly.
• Remedy: 1 The power is turned OFF while function code 74 was running. Reenter the country code. 2 Main PCB failure Replace the main PCB ASSY.