Abstract: An impact printing mechanism which contains a great number of printing types in a minimized spacing is disclosed. Types are arranged in rows of columns on a plurality of substantially planar type carrying elements which are accommodated in equally spaced parallel relationship in a removable casing. Selection of a type is attained by three dimensional movements including horizontal movements of the elements within and perpendicular to their planes and a vertical movement of an element within its plane.The type carrying elements are carried on a carrier while a print hammer is mounted on an independent carrier. The former carrier includes an outer section and an inner section mounted for movement on the outer section, and means for lifting a type carrying element is mounted on the outer section.

Abstract: The invention relates to an apparatus for printing on receipt forms or the like with a one-line printing mechanism. In order also to be able to print the form with a number of lines, this is gripped firmly on a sliding carriage and the carriage is moved along into different line positions on the printing mechanism. A mechanical control mechanism with a cam plate serves for driving the sliding carriage. The closed cam plate makes possible a control in the retraction and extension direction with a corresponding rotation of the cam plate. The exact positioning of the sliding carriage is done by a ratchet in the control mechanism. An electronic control takes care of an automatic running of one printing operation.