Bug#712719: Downgrade procedure

[Thomas Braun <thomas@akwgegner.de>]

>From my three printers one, a UTAX CD1120, stopped working after the
squeeze->wheezy dist-upgrade.

The printer uses a lpd queue, port 9100, so the IPP changes can not be
the culprit.

I "solved" the problem by downgrading the cups packages to the squeeze
version.

Just in case someone wants to do that also the procedure is:
1.) add the following to /etc/apt/preferences
-------
Package: cups cups-common libcups* cups-client cups-driver-gutenprint
Pin: release n=squeeze 
Pin-Priority: 1010
-------
2.) apt-get install --reinstall cups
3.) /etc/init.d/cups stop
4.) Replace the contents of /etc/cups of a backup of your old squeeze
config files.
5.) /etc/init.d/cups start

Hope that helps
Thomas