Abstract: Printer for printing machine comprising a plurality of styluses arranged in a plane parallel to the writing line and a corresponding number of electromagnets whose armatures cooperate with one end of the styluses mounted in a fixed guide, the other end being driven by a movable guide, characterized by means for subjecting the guide to a first alternating linear movement parallel to the writing line combined with a second alternating linear movement perpendicular to the first one, the amplitude of these linear movements corresponding to an integral number of characters printed in the form of dot matrixes.The invention can be applied to high speed printers operating at 300 to 500 lines per minute.