This article shows you how to print to any printer on the local network from an iPad2 that is not AirPrint enabled. By default, the iPad 2 gives you the ability to print to any AirPrint-enabled printers on your WiFi network, the list of which can be found
here. However, if you already have a printer on your network that is not AirPrint-enabled, you can still print to that printer by setting up your Windows computer to run AirPrint. Your iPad 2 sends the print job over the WiFi connection to your windows machine, which then passes the job to the printer you select. You don't need to have a wireless printer, just a printer installed on the network. This article will take you through setting up your Windows machine to allow the iPad 2 to print to any printer on your network.
First of all, you need to have the Bonjour service installed. This is a service to discover printers on your network, and then makes them available for your iPad 2 to use. Information about the Bonjour service, including the download, can be found