JPS5582670A - Liquid jet recording method - Google Patents

Abstract

PURPOSE:To conduct HF moldulation in a weak electric field and express gradation at high fidelity to gradation signals by causing a group of selected droplets to evaporate from a stationary axis and controlling the number of droplets passing through unit area of a plane perpendicular to the axis per unit time. CONSTITUTION:When droplets passing through a charging ring 102 are charged, and flight directions are changed by an electric field between electrodes 103 and 104. The deviation of the flight direction of the droplet 111 is determined by its charge which is determined by the timing of an AC voltage applied to the ring 102 when the droplet passes through the ring 102; therefore, in the long run, it is observed that a group of droplets are scattered in the direction of the deflecting electrodes. Recording is effected by allowing the scattered droplets to pass according to an opening of slit-shaped apertures 105 and 106 and reach recording paper fixed on a device which allows the movement of the paper, e.g. a rotary drum 107.