I am not sure this is the same bug as that mentioned in comment #2. For example, after finding that my Canon MX870 would not function under Ubuntu 12.04 64-bit, I purchased a cheap HP printer that uses the hplip driver, and that works fine. I would like to have this Canon function, however, so I am still searching for a solution to this problem.
Note that the Canon printer does not use the hplip driver mentioned in comment #2. To get it to work under Ubuntu 10.04 64-bit I had to force-install the drivers downloaded from the Canon site. Even that does not work now, however, primarily due to the standard library changes introduced since then.
I am not sure this is the same bug as that mentioned in comment #2. For example, after finding that my Canon MX870 would not function under Ubuntu 12.04 64-bit, I purchased a cheap HP printer that uses the hplip driver, and that works fine. I would like to have this Canon function, however, so I am still searching for a solution to this problem.
Note that the Canon printer does not use the hplip driver mentioned in comment #2. To get it to work under Ubuntu 10.04 64-bit I had to force-install the drivers downloaded from the Canon site. Even that does not work now, however, primarily due to the standard library changes introduced since then.