Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1989-11-22
1990-12-25
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
B41J 205, B41J 2135
Patent
active
049807030
ABSTRACT:
A print head for an ink-jet printing apparatus has a plurality of heater elements arranged in a first direction on one surface of a substrate. A nozzle plate is positioned substantially parallel to and displaced from the surface of the substrate with a predetermined interval therebetween in order to form an ink chamber for retaining recording ink. A slit nozzle extends in the first direction on the nozzle plate and at a position which is opposite the heater elements. Barrier walls are formed on the surface of the substrate and between a plurality of the heater elements, respectively, the barrier walls extending in a second direction which is substantially perpendicular to the first direction. The heater elements generates vapor bubbles in the recording ink to produce energy for ejecting ink droplets from the slit nozzle and in the direction perpendicular to the surface of the substrate.
REFERENCES:
patent: 4312009 (1982-01-01), Lange
patent: 4334234 (1982-06-01), Shirato
patent: 4368476 (1983-01-01), Uehara
patent: 4490728 (1984-12-01), Vaught
patent: 4580148 (1986-04-01), Domoto
patent: 4587534 (1986-05-01), Saito
patent: 4725862 (1988-02-01), Matsuzaki
patent: 4751533 (1988-06-01), Saito
Hewlett-Packard Journal, vol. 36, No. 5, May 1985, pp. 21-26 and 33-37.
Hartary Joseph W.
NEC Corporation
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