Brother DCP-L8400CDN Service Manual page 409

If an error occurs while executing Function code 41, error items below are displayed on the
LCD. Press the X key, and the machine returns to the initial state of the maintenance mode.
Then, take a measure.
LCD
USB Mem used
Insert USB Mem
No file
USB Mem Error
Write Error
Restoration Procedure
(1) Insert the USB flash memory containing the backup data into the slot of the machine in
the initial state of the maintenance mode. The "USB Host Connect" is displayed on the
LCD.
(2) Press the 4 and 1 keys in this order. The "Export to USB" is displayed on the LCD.
(3) Press the or
and press the Mono Start key. "*******.seri" is displayed on the LCD. ("*******" shows the
name of the model.)
(4) Press the Mono Start key. The "Reboot OK?" is displayed on the LCD.
(5) Press the Mono Start key. "Please wait" is displayed on the LCD and the restoring is
performed. Upon completion of restoring, the machine returns to the initial state of the
maintenance mode.
(6) Remove the USB flash memory from the machine.
Restore methods
"Import PI" for restoring only user setting information
"Import ALL" for restoring all backup data including machine information
Note:
- Never remove the USB flash memory from the machine when exporting is in progress.
- If the serial number of the backup data saved in the USB flash memory and the serial
number of the machine do not match, the data cannot be restored.
If an error occurs while executing Function code 41, error items below are displayed on the
LCD. Press the X key, and the machine returns to the initial state of the maintenance mode.
Then, take a measure.
LCD
USB Mem used
Insert USB Mem
No file
USB Mem Error
Machine ID Error
Write Error
The USB flash memory is being used by another operation.
No USB flash memory is inserted.
The file name is invalid or no "BROTHER" folder exists.
USB flash memory error
The USB flash memory does not have enough space.
key to display the desired restore method shown below on the LCD,
The USB flash memory is being used by another operation.
No USB flash memory is inserted.
The file name is invalid or no "BROTHER" folder exists.
There is no backup data.
USB flash memory error
Serial number does not match. The data is for other machine.
A write error occurred.
5-25
Cause
Cause
Confidential