Ink jet recording head

Details Ink jet recording head Ink jet recording head

1986-09-04

1988-06-21

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310328, 310367, 417322, G01D 1516

Patent

active

047527889

ABSTRACT:
An ink jet recording head in which the ink in an ink cavity is jetted in the form of a droplet from an ink nozzle by utilizing a piezo-electric effect. The recording head includes a piezo-electric plate made of piezo-electric material and having a plurality of elongated ink cavities formed therein, and a cover plate fixedly placed on the piezo-electric plate. In one of the embodiments, each of the plurality of elongated ink cavities has two deep grooves formed in the longitudinal direction of the ink cavities and a shallow groove provided between the two deep grooves. Voltage applying electrodes are provided on piezo-electric portions which form the shallow grooves.

REFERENCES:
patent: 3955204 (1976-05-01), Anton
patent: 4032929 (1977-06-01), Fischbeck
patent: 4487662 (1984-12-01), Fischbeck
patent: 4536097 (1985-08-01), Nilsson
patent: 4578686 (1986-03-01), Vollert
patent: 4605939 (1986-08-01), Hubbard

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