I need to put a printer in my vehicle so that I can print an email attachment (it will be from an eFax type service once I find a good one). I'd like to be able to go from phone to printer, and not need a laptop or a router in the truck. Is this possible? What FEATURE do I need to find in a printer? Or if you can recommend a printer, that works too. Trying to stay inexpensive here. Moto RAZR MAXX HD if that matters.