A:AnswerThere is no ink required with the HP Sprocket! The technology is all in the paper, and the Sprocket itself! The zero-ink (ZINK) paper is thermally treated, and reacts to a warmed metal strip inside the device!
A:AnswerThe HP Sprocket requires the use of the HP Sprocket App, which presently is only available on the Apple store and Google Play store. There is the Sprocket 2-in-1 model that can store a SD card, which can be used to save photos taken with the Sprocket, or load/print photos taken from another digital camera.
A:AnswerYes, it is designed to work with smartphones and tablets. It prints 2x3 photos. I would recommend checking out a LaserJet printer if you want a desktop model which does not use ink but rather toner.
A:AnswerDownloading the HP Sprocket App is mandatory...Should work with your iPhone ...not sure about the digital camera. I use my iPhone with the Sprocket.