Comment 3 for bug 404339

The license of this printer driver pobably does not allow this:
You are not permitted to: (1) rent, lease, sub-license, loan, sell, assign, convey, transfer, copy, modify, adapt, merge, translate, convert to another programming language, reverse-engineer, decompile, modify, alter, disassemble or create derivative works based on the whole or any part of the Software or its related documentation.

If you want your printer driver to be installed automatically in future versions of Ubuntu you should ask the manufacturer Canon to provide a distribution independent driver package as described here: http://www.linux-foundation.org/en/OpenPrinting/WritingAndPackagingPrinterDrivers, so automatic download of the printer driver becomes possible as already implemented by this specification: https://blueprints.launchpad.net/ubuntu/+spec/printerdriverautodownload since Ubuntu Intrepid.