Printing device with stabilized printing electrode

Claim 1

A printing device for printing images upon an information carrier, said images composed of dot-like or line-like elements, said printing device comprising: a base member; a belt supported upon said base member for movement about a plurality of pulleys; an image electrode comprising a wire-like conductive member extending generally radially from and supported by said belt, said image electrode movable with said belt; electrode guide means supported by said base member guiding said image electrode in a slot-like aperture during printing; curved guide path means guiding said image electrode and having a curved guide path feeding the slot-like aperture of said electrode guide means for stabilizing the movement of said image electrode; and a counter electrode supported by the base member and disposed opposite said belt, said information carrier passinG between said belt and said counter electrode, and consequently between said image electrode and said counter electrode, when said image electrode is transported by belt in juxtaposition to said counter electrode, said information carrier thus receiving an electrostatic charge when said electrodes are adjacently disposed towards one another and a predetermined potential exists therebetween.