Printing head of wire-dot impact printer

Abstract From the Canadian patent

A printing head includes a plurality of impact printing wires constituting a dot matrix and a plurality of actuators for driving the printing members respec-, tively. Each of the actuators comprises a movable member to which a printing wires is connected and, electro-distortion device, a pair of parallel resilient members having one ends connected, via an electrodistortion device and directly, respectively to the, frame and the other end connected to the movable member so that a displacement of the electro-distortion device is enlarged by the movable member and transmitted to the printing wire. A third resilient member is arranged substantially perpendicular to the first and second …