Apple delivers third-pary software for scanners and printers via Software Update.
Simply connect the printer or scanner to the Mac.
If software is needed and available, OS X will automatically download and install it.
Important: RunSoftware Updatebefore connecting to a printer or scanner.
This will update the Mac’s database on the latest supported printer and scanner models.
For more information about setting up and using printers in OS X Lion, seethis article.
For more information about setting up and using printers in Mac OS X v10.6 Snow Leopard, seethis article.
For information about troubleshooting printer setup issues, seethis article.