Multi-channel array, pulsed droplet deposition apparatus

Details Multi-channel array, pulsed droplet deposition apparatus Multi-channel array, pulsed droplet deposition apparatus

1989-09-05

1991-02-12

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41J 2045

Patent

active

049928082

ABSTRACT:
A multi-channel array, pulsed droplet ink jet printer comprises a plurality of channels each communicating with a respective nozzle. A side wall of each channel is formed as a shear mode piezo-electric actuator. Electrodes applied to the actuators enable electric fields to be applied such that the actuators move laterally in the direction of the field to change the liquid pressure in the channels for effecting droplet ejection through the channel nozzles. The actuators can be made in two parts so as to deform, in cross section, to a chevron formation.

REFERENCES:
patent: 4272200 (1981-06-01), Hehl
patent: 4536097 (1985-08-01), Nilsson
patent: 4584590 (1986-04-01), Fischbeck
patent: 4879568 (1989-11-01), Bartky
Tsao, C. S., Drop-On-Demand Ink Jet Nozzle Array with Two Nozzles/Piezoelectric Crystal, IBM TDB, vol. 23, No. 10, Mar. 1981, p. 4438.

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