How to install a driver for a Canon network printer on Ubuntu 12.04 64bits

Being able to print something on a Canon network printer (C5030i) from an Ubuntu 64 bits machine could be quite a pain. I spend a bit of time to have it working and I’m keeping here my notes.
The community has been asking for a packaging for the Canon UFR II driver and some of the tricks listed here have been found in the comments of the Launchpad issue¹.

1. Start by downloading the official canon drivers, a zip file called o1113enx_l_ufr220.zip at this URL, http://software.canon-europe.com/software/0040355.asp
2. As there is no 64bits deb package, we gonna have to use the rpm files. Proceed as follow:
   

   # convert to deb files
   sudo alien -d --scripts cndrvcups-ufr2-uk-2.2.20-1.x86_64.rpm
   sudo alien -d --scripts cndrvcups-common-2.20-1.x86_64.rpm
   # install the packages
   sudo dpkg -i cndrvcups-common_2.10-2_amd64.deb
   sudo dpkg -i cndrvcups-ufr2-uk_2.10-2_amd64.deb
   

3. Now, you can install the printer, go to SystemSettings > Printers > Add > NetworkPrinter and then, when you have to choose the driver, select Provide PPD file. Select a ppd file from the /usr/share/cups/model folder.
4. The issue is now that AppArmor is blocking the /usr/lib64 which is not standard on a Debian machine. So, edit /etc/apparmor.d/local/usr.sbin.cupsd and add these lines
   

   /usr/lib64/cups/backend/cnusb Uxr,
   /usr/lib64/cups/filter/pstoufr2cpca Uxr,
   

   
   You should also do this so that the libraries can be found :
   

   ln -s /usr/lib64/lib* /usr/lib/x86_64-linux-gnu/
   

5. The last problem will be fixed by installing some 32bits libraries as the driver is not entirely compiled in 64bits.
   

   sudo apt-get install ia32-libs libjpeg62:i386
   

Try to print a test page and enjoy.

¹ https://bugs.launchpad.net/ubuntu/+bug/502920