Start a Terminal using CTRL+ALT+T. Install some depencencies and frontend scanner tools using
sudo apt-get install xsane sane-utils simple-scan lib32stdc++6
Now download the drivers. In case brother loses them, I mirrored them here. Alternatively use the wget commands down below.
wget http://download.brother.com/welcome/dlf006646/brscan4-0.4.4-4.i386.deb -O brscan4-0.4.4-4.i386.deb
wget http://download.brother.com/welcome/dlf006651/brscan-skey-0.2.4-1.i386.deb -O brscan-skey-0.2.4-1.i386.deb
wget http://download.brother.com/welcome/dlf006654/brother-udev-rule-type1-1.0.2-0.all.deb -O brother-udev-rule-type1-1.0.2-0.all.deb
Now install the drivers you just downloaded:
sudo dpkg -i –force-architecture brscan.deb brother-udev-rule.deb
And restart your udev service:
sudo systemctl restart udev.service
All i had to do was unplug and plug in my DCP, and i could immediately scan using simple-scan in Gnome.