Airport Printer Install for Windows 7

Installing Apple's Bonjour Print Services for Windows? No need!

1. Get printer's IP address.
2. Start > Control Panel > Devices and Printers
3. Add a printer > Add a local printer
4. Create a new port Standard TCP/IP Port
5. Enter IP address, "IP_{address}" for the name  
6. Make sure the box “Query the printer and automatically select the driver to use” is checked.
7. Choose Custom, then Next.
8. Select printer driver.

Source: http://thingsiknowabout.com/wordpress/?p=21