Install

sudo apt install --no-install-recommends simple-scan

Fix privilege problems (only sudo can scan)

1) Create /lib/udev/rules.d/55-libsane.rules and add:

# Brother scanners
ATTRS{idVendor}=="04f9", ATTRS{idProduct}=="00ab", MODE="0660", GROUP="scanner", ENV{libsane_matched}="yes"

2) change 04f9 and 00ab with the ones found with lsusb

3) Add user to scanner group

    sudo usermod -a -G scanner nparafe

4) Reboot