Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1991-11-08
1993-10-12
Reinhart, Mark J.
Recorders
Markers and/or driving means therefor
With ink supply to marker
B41J 2045
Patent
active
052529940
ABSTRACT:
An ink-jet recording head, in which two piezoelectric substrates are opposite each other in polarization direction, and grooves are formed across the interface of the two substrates at a predetermined pitch so as to form cavities. One of each of the cavities is opened to the atmosphere and include an orifice adapted for squirting ink drops. The cavities have electrodes formed on their inner surfaces. When a voltage of one polarity is applied to the electrode for the cavity from which ink drops is to be generated whereas a voltage of the other polarity is applied to the electrodes for the two adjacent cavities, the diaphragms separating the three cavities deform in a shear mode towards the cavity from which ink drops is to be generated. As a result, the capacity of the cavity from which ink drops is to be generated decreases to have the ink in the cavity squirt outward from the orifice.
REFERENCES:
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patent: 4072959 (1978-02-01), Elmqvist
patent: 4842493 (1989-06-01), Nilsson
patent: 4888598 (1989-12-01), Heinzl et al.
patent: 5016028 (1991-05-01), Temple
patent: 5072240 (1991-12-01), Miyazawa et al.
Hoshino Masaru
Narita Toshio
Sakai Shinri
Tatsuzawa Yoshiko
Bobb Alrick
Reinhart Mark J.
Seiko Epson Corporation
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