What is TITO? Stands for ticket in, ticket out. Some home use machines have printers that will print a voucher that is usually useless, UNLESS you have a TITO board installed. TITO boards give the ability to print and use the voucher back into the machine, or any machine that also has a TITO board installed. If you have 2 machines that both have a TITO board installed, you can cash out of one, and put your voucher into the other machine. TITO will also add $100 in credits to your machine when the service button is pressed.
Keep in mind, you cant just plug a TITO board in, and expect it to work. Your machine will need to be cleared and configured to accept settings for the tito to work. (good time to put that fresh battery in!)