Comment 4 for bug 91382

To get the test done correctly, do the following:

Either wait for the package (1.2.8-0ubuntu4) to hit the mirrors (should be the case in some hours) and do

sudo apt-get update
sudo apt-get dist-upgrade
sudo dpkg -P --force-depends cupsys
sudo apt-get install cupsys

or (i386/32-bit PC only) download the new packages from

http://www.linux-foundation.org/~till/tmp/ubuntu/feisty/cupsys/binary/

and do

sudo dpkg -P --force-depends cupsys
sudo dpkg -i *.deb

Now the backends should be linked and configured correctly.