Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1997-11-10
2000-06-13
Pendegrass, Joan
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 65, B41J 205
Patent
active
060740434
ABSTRACT:
A spray device for an ink-jet printer includes a resistor layer, selectively formed on a substrate for generating heat; a pair of electrodes, formed on the resistor layer, for supplying electrical energy to the resistor layer, a protective layer, covering the surface of the pair of electrodes and the resistor layer for preventing corrosion a heating chamber barrier, formed on the protective layer for establishing a heating chamber over the hearing portion of the resistor layer, the heating chamber containing a working fluid which is heat-expanded by the heat generated from the resistor layer; a multi-layer membrane, made up of multiple interlayers each having a different coefficient of thermal expansion, for covering the heating chamber barrier and thereby sealing the heating chamber; an ink barrier, formed on the multi-layer membrane so as to define an ink chamber for containing ink, for guiding the ink transmitted from an ink channel, a nozzle plate formed on the ink barrier and having an opening positioned over the ink chamber, for spraying ink contained in the ink chamber onto printing media; and an electrical power connection for supplying opposing polarities of electrical energy to the pair of electrodes.
REFERENCES:
patent: 4480259 (1984-10-01), Kruger et al.
patent: 5467112 (1995-11-01), Mitani
patent: 5684519 (1997-11-01), Matoba et al.
Bushnell Esq. Robert E.
Pendegrass Joan
Samsung Electronics Co,. Ltd.
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