11-13-2012 07:41 AM - edited 11-13-2012 07:42 AM
Canon's website most likely has the software you need. http://www.usa.canon.com/cusa/home
Search for your printer in the search box (top-right), and then go to the "Drivers & Software" section.
What printer do you have and what computer operating system are you trying to add the printer to?