Abstract: This invention is concerned with a ticket issuing machine system including a keyboard 6 to enter into the machine details of a ticket to be issued a printer 1 to print out ticket information on the ticket depending upon the data entered into the keyboard and means 8 for storing information about the tickets issued by the machine and which includes a store circuit board module 12 capable of storing data about the tickets issued and which is readily capable of being inserted into and removed from the ticket issuing machine to have the details of the tickets issued transferred to an exterior store. The machine includes optical emitting means 17, 20 and optical responsive means 8, 19 to enable signals to be passed.