Brother MFC 8840DN - Manual (Page 94)

5 - 2 USING MFC REMOTE SETUP
Print button
The Print button prints the selected items on the MFC. You cannot
print the MFC Remote Setup changes until you click the Apply
button to upload the new data to the MFC. Then you can click the
Print button to get an up-to-date printout.
Export button
Click the Export button to save your current settings to a file.
Import button
Click the Import button to read the settings from your saved file into
the MFC Remote Setup screen.
You can use the Export and Import buttons to save and use
several sets of settings for your MFC.