Is anybody successfully addressing a Canon PIXMA MX printer (MX350 in my case) on current Ubuntu 12.04 (64bit)?
Go to this website http://software.canon-europe.com/products/0010699.asp.
Select Linux, press submit and select : "Printer Driver for Debian Linux (3.1)". Its name should be cnijfilter-mx860series-3.10-1-i386-deb.tar.gz
This driver also works for MX320 and MX330 printers so maybe also for MX350.
Untar it and do
cd cnijfilter-mx860series-3.10-1-i386-deb/packages sudo apt-get install libpopt-dev # not sure it is useful sudo dpkg --force-architecture -i cnijfilter-common_3.10-1_i386.deb sudo dpkg --force-architecture -i cnijfilter-mx860series_3.10-1_i386.deb
Now just go to System Settings/Printing. Press Add, and you should see your printer if you wait a bit.
I made a tutorial where I describe the installation of canon pixma mx715 in linux ubuntu (scanner + printer):
I think it also helps you with your mx350, because it's the same way only other driver data (you can translate the site to English with the flag-icon on the right side of the blog)