Ticket printer

Abstract

A ticket printer is disclosed. A motor equipped with a centrifical speed governor, opposing ticket rollers and ticket transport tray rolls a blank, multipage ticket form past seven needle printing heads which are solenoid actuated and two sequencing switches. The ticket to be printed is inserted into the ticket transport tray and engages a motor operate switch which rotates certain ticket rollers at a governed speed. The ticket advances, pinched by opposing rollers and moves beneath the seven parallel needle printing heads and also actuates a print start switch which initiates electronic operation. The ticket continues its advance while being printed for N digits until the ticket disengages the motor start switch whereupon the drive motor rotates sufficiently to expel the ticket from the tray and printer. The apparatus accepts N digits of BCD formated data in serial fashion. This data is stored temporarily in the register, and is called sequentially by a multiplexer connected to a four line input into a BCD to seven segment decoder. The seven segment signals are output to a (X by Y) seven by five matrix which forms drive signals for dot keyers connected to seven solenoids. The solenoids are momentarily actuated to form a dot. They are actuated potentially five times during the advance of the ticket form to place each digit on the ticket form on a seven by five dot pattern.