Dual side ID card printers print onto both sides in a single pass through the card printer. Dual side ID card printers extend the amount of information you are able to include on an individual ID card. By printing on the backside of ID cards you will be able to include information about the card holder that is important to their identification, but not necessary to include on the front of the card (i.e. personal information or a magnetic stripe). Evergreen ID Systems carries a wide variety of dual side card printers from major brand names like Fargo, Magicard, and Evolis.