I have a brother printer-scanner, model DCP-195C.
There is a script on the brother-website which works well. It installs the printer drivers as well as the scanner drivers.
On a 64-bit system and Ubuntu 12 or 14 upwards, the user must copy some files from usr/lib64 to usr/lib , then printer and scanner works fine.
But problems with this routine started yesterday with wattOS and Ubuntu Mate 12.10 .
The routine installation did not work anymore.
What a luck that I found this thread.
Dan gave the solution.
I installed cups with Synaptic , restarted, then ran the brother-script again ... and now printer and scanner functions work well.
Thanks to all, especially to Dan.