Printer drivers for Brother MFC-7420 don't seem to work

[Alex Greenshot]

After installing Ubuntu 12.10 and the drivers for my MFC-7420, I had the same symptoms as described here: https://bugs.launchpad.net/ubuntu/+source/brother-cups-wrapper-laser/+bug/914150

I then went to http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/download_prn.html#MFC-7420, downloaded the LPR and the cupswrapper .deb packages and, after uninstalling the respective Ubuntu package, installed them with

    dpkg -i brmfc7420lpr-2.0.1-1.i386.deb cupswrapperMFC7420-2.0.1-2.i386.deb

After that, printing worked.

This is strange, as I believe that Ubuntu ships the exact same packages, but somehow installing the original packages appears to have fixed the problem.