+ 0 Votes Not a specific answer, but GSG September 24, 2013 at 7:30am PST Talk to your local library and see what they use. They've already done this if they are a modern library. For example, at mine, if you want to print, you print, then go over to the bank of printers. You use the code you were given to retrieve your print job at the central command station, and it tells you how much your job will cost. You can pay by credit card right there, or you can enter cash at the printer.