I own a Canon MP276 Ink jet printer.The official Ubuntu repositories contain drivers for most of the canon printers and it was there for mine too.But as I have found the quality of printing turns out to be great after installing official canon drivers from their website.
It is troublesome to find the drivers for Ubuntu on Canon.So the easiest way is add this PPA and install the drivers from there.
For adding this PPA, open the terminal and execute these commands one by one:
sudo add-apt-repository ppa:michael-gruz/canon-stable
sudo apt-get update
For installing drivers for MP270 series,this command:
sudo apt-get install cnijfilter-mp270series