Hello, please consider to add the following udev rule for Brother scanners: # Brother ATTR{idVendor}=="04f9", ENV{libsane_matched}="yes" Source: http://support.brother.com/g/s/id/linux/en/instruction_scn1c.html?c=us_ot&lang=en&redirect=on This works well for me on Fedora 27. Thanks! Regards, Thomas