HP is also continuing its push for expanded cloud-printing solutions, so all four models are compatible with Apple AirPrint, as well as HP's own ePrint, which lets users send jobs from any connected device over the air using a uniquely assigned e-mail address.and
I've tested this feature across
The 6100 and 4620 both offer tactile buttons on the control panel, but bump up to the 6600 or the 6700 Premium and you'll get 2.65-inch touch screens that enable navigation through the onscreen menus. You also get a collection of preloaded apps that let you print everything from news pages via the Financial Times and USA Today to coloring pages and paper airplanes for the kids.
The HP ePrintCenter site acts as a hub so you can download more apps and rate them after.