If you have a canon printer you will need to download the software when adding it to your computer for it to work. You can download and install it by using the CD that comes with the printer and follow the directions. Now since the printer more times then not has been sitting on a shelf for a while the software probably is out dated a little. When installing form the CD it will probably go out
. to update the drivers for the most current. Some people choose to just go out to the Canon site and download it directly from the site so they have the current drivers and updates. For more information on this query you can visit this trusted site http://www.nodevice.com/driver/company/Canon/Printer.html.