Ink jet recording head

Details Ink jet recording head Ink jet recording head

1995-12-27

1998-11-03

Wong, Peter S.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 56, B41J 205

Patent

active

058316485

ABSTRACT:
A plurality of heaters are provided on a silicon substrate in a plurality of individual ink channels. Each heater is constructed from a thin-film resistor and a thin-film conductor. The thin-film resistor is formed with an electrical insulation layer at its upper surface. The electrical insulation layer is formed through subjecting the thin-film resistor to a high-temperature thermal oxidation process. The thin-film resistor formed with the electrical insulation layer may be covered with an additional insulation layer of a thickness substantially equal to the thin-film resistor.

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German Office Action dated Dec. 10, 1996 and translation thereof.
Collection of Presentations from the 27th Japan Thermal Transmission Symposium, 1990--5, pp. 334-336.
J.P. Baker et al.; "Design and Development of a Color Thermal Inkjet Print Cartridge"; Hewlett-Packard Journal, Aug. 1988.
Patent Abstracts of Japan, M-589, May 20, 1987, vol. 11, No. 15, 61-284450, "Liquid Jet Recording Head and Apparatus".
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Official Action of the German Patent Office, File No. P 43 17 944.4-27, of Hitachi-Koki Co., Ltd., dated Sep. 14, 1994, with English translation.
Keil et al.; "Electrische Kontakte und ihre Werkstoffe"; pp. 245-247, (1984).
J.S. Aden et al.; "The Third-Generation HP Thermal InkJet Printhead"; Hewlett-Packard Journal, Feb. 1994, pp. 41-45.
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