Apple AirPrint

AirPrint is a component of Apple Inc. iOS, version 4.2 or later, for printing via a wireless LAN (wi-fi),^[1][2] either directly to any AirPrint compatible printers (such as HP’s entire ePrint range, Canon wireless models produced after September 2011,^[3] select Brother models,^[4] or to any Epson models produced after fall 2011^[5]) or to non-compatible printers through a MS Windows, Apple Mac OS X^[2][6] or GNU/Linux PC.^[7][8] AirPrint does not require printer-specific drivers.

http://en.wikipedia.org/wiki/AirPrint