I'm no expert on Apple products, but I was under the impression you could only use specific printers w/ iOS devices. I have an iPod Touch, and I’ve never seen a printer interface of any kind (no drivers, no setup, no options, no nothing, it’s like printers don’t exist in the iOS world). As far as I know, you need something like Apple AirPrint and a compatible printer.http://www.hp.com/global/us/en/eprint/airprint.html?jumpid=re_r11400_airprint_redirect
But again, I'm not an expert on this topic by any stretch. I just know this has always been a shortcoming of (and hassle with) all these iOS devices. Apple makes it as difficult and convoluted as possible.