Abstract: A display for digital/analogous visualization of computer stored and bitmapped, in the form of still or moving patterns, (e.g., text or images) or the like, on or by way of at least one visualization medium. The display consists of one matrix including at least two sets of electrodes, wherein the electrodes cross each other. The electrodes are distanced from each other by at least one resistive and/or inductive spacer, and are connected to at least one control device for multiplexing, scanning or pulsating the control signals. The electrodes are individually addressable in accordance to electric signals from a control unit and are provided so that when selected electrodes in both sets of the electrodes are energized, a temperature change (heat) is conducted towards the medium. The medium includes a thermosensistive indicator (e.g.) a layer, or a body. The surface/surfaces in the display are provided to transform the temperature change to visible dots.

Abstract: A printer unit of a printer device having at least one printer unit which includes at least one toner container for toner particles and an electrode unit, including electrodes and apertures surrounded at least partly by the electrodes. The electrode unit is arranged to control the transportation of the toner particles by means of attraction fields from a toner carrier member arranged in the toner container or in a space communicating with it towards a back electrode and an information carrier insertable between the toner carrier member and the back electrode. The toner carrier member, the electrode unit, and/or the back electrode are arranged to form a transportation zone between two most remote transversal electrodes and generate the attraction fields, which through the apertures attract the toner particles towards the back electrode.

Abstract: A direct electrostatic printing device for printing an image onto an image receiving substrate includes a toner carrier having a plurality of charged toner particles thereon. A toner delivery unit conveys the charged toner particles to the toner carrier. The toner delivery unit further includes a voltage source and a transfer member connected to the voltage source. The voltage source produces an electrical potential difference between the transfer member and the toner carrier to cause toner particles having a predetermined charge polarity to be attracted from the transfer member to the toner carrier. A printhead structure has an electric field pattern generated on it which is defined by an image to be printed. The printhead structure selectively controls transport of charged toner particles from the toner carrier onto the image receiving substrate.

Abstract: A printhead structure for direct electrostatic printing having a back electrode and a particle supplying unit. The particle supplying unit conveys charged particles to a particle source positioned adjacent to the back electrode. A flexible control unit interposed between the back electrode and the particle supplying unit converts a stream of electronic signals, defining image information, into a pattern of electrostatic fields that within a predetermined print area of the print head structure selectively permit or restrict the transport of said charged particles from the particle source toward the back electrode. The flexible control unit is positioned and maintained in a spaced relation to the particle source. The flexible control unit is aligned with the particle source and the distance between a surface of the flexible control unit and the particle source is adjustable.