A printer system comprising a printer having a printhead operatively installed therein, the printer including a housing having opposing thumb screws extending outwardly therefrom, and a mount comprising a printer bracket having opposite printer bracket side members each terminating in a distally extending side member leg configured for attachment to the rail, the printer bracket side members each further having a mounting slot formed therein with a vertical slot portion and at least one horizontal slot portion and a rail bracket having a rail bracket top member with opposite substantially downwardly extending rail bracket side members terminating in outwardly extending side member legs configured for attachment to the rail, whereby the printer is received within the mount and selectively positioned therein as by engaging the thumb screws within the mounting slots so as to position the printhead as desired beneath the rail bracket top member.