Apple has released printer driver updates with compatibility fixes and additional drivers for printers from Brother, Canon, Epson, HP and Lexmark.
To install the updates, make sure that you have the devices powered on and connected to your Mac or on your network. Now, navigate to: Apple menu > Software Update and launch the Software Update application. If there are newer drivers available for your printer or scanner, the drivers will appear in the available update list.
You can also find a full list of the printer and scanner drivers included with Mac OS X 10.6, or Snow Leopard, on-line at the Apple Support Web site.