I have two Brother printers : an MFC-9330CDW and a QL-1050.
Since Ubuntu 16.04 doesn't seem to provide drivers for these models, I downloaded and installed drivers from the Brother website.
The printers were automagically detected by Ubuntu, and anyway I was able to delete and add them again through the CUPS server interface (http://localhost:631).
However in both case I am not able to print any document. Even the test page won't print (though the "self test page" does) : it appears briefly in the queue, then disappears silently.
I suspect an issue with CUPS filters, since it does print when using
lpr -o raw.
What could be the problem ?
Side note : I noticed that the Brother website advices
lib32stdc++ as requirements for Debian 64 and Ubuntu 64, but
apt says there are no such packages.