This might prove helpful.
Apple on Tuesday released two sets of printer drivers, one for HP printers and another specifically for Canon laser printers. There honestly doesn’t appear to be anything special about either update other than bringing them up to date with the latest printers and under-the-hood stuff.
The HP Printer Drivers 2.16.1 for OS X update, which stands as a 499.82 MB download and the Canon Laser Printer Drivers 2.11 for OS update, which stands as as a 28.82 MB download, install the latest drivers for an assortment of printers and multi-function devices.
The updates require an Intel-based Mac running Mac OS X 10.6 or later to install and run.