Printing documents from the iPhone 4 can be a daunting task because it requires AirPrint compatible printers. Now, however, telephony has made printing possible in iPhone 4 even with printers using Windows' OS. The new version of the IOS 4.2.1 on the Apple phone makes this possible. Firstly, the printer has to be configured in Windows and shared through Print Properties by changing the setting. Then, the AirPrint activator which works under the new IOS has to be downloaded and started. Through this, the Wi-Fi network of the computer has to be brought onto the same network that the iPhone 4 operates on. Now, the iDevice is ready to print the required documents even without AirPrint compatible printers.
How to use the AirPrint without compatible printer