In order to use your printer with your mobile device, you need to download and install Epson iPrint. It requires iOS 5.0 or later and it is compatible with iPhone, iPad, and iPod touch. Connect your printer and your iPhone to the same wireless network and open the application. Tap the Printer is not selected button and then Printer from the Maintenance window. The application will search for printers connected to your local Wi-Fi network. After the process is complete, tap on the Epson printer and then the Home button. After you receive the Printer is ready message you can begin to print.