Ink jet array

Details Ink jet array Ink jet array

1989-02-28

1990-01-02

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1516, B41J 304

Patent

active

048916544

ABSTRACT:
In the representative embodiments of an ink jet array described in the specification, a plurality of ink sources is arranged to provide different inks to selected orifices and a linear array of ink jet orifices is supplied with ink from pressure chambers alternately disposed on opposite sides of the array to permit close spacing of the ink jet orifice and adjacent pairs of orifices in the array receive ink from the same ink source. At the end opposite from the ink jet orifice, each pressure chamber having a compliant wall communicates with a low acoustic impedance chamber to reflect negative pressure pulses from the pressure chamber back through the chamber as positive pulses to reinforce positive pulses applied to the pressure chamber and to prevent pressure pulses from being transmitted to the ink supply.

REFERENCES:
patent: 3832579 (1974-08-01), Arndt
patent: 4216477 (1980-08-01), Matsuda
patent: 4521788 (1985-06-01), Kimora
patent: 4611219 (1986-09-01), Sugitani
patent: 4680595 (1987-07-01), Cruz-Uribe
patent: 4695854 (1987-09-01), Cruz-Uribe
patent: 4716418 (1987-12-01), Heinzl
patent: 4743924 (1988-05-01), Scardoui
patent: 4835554 (1989-05-01), Hoisington
"Pulse Cancellation in Drop-on-Demand" G. A. Drago, G. L. Fillmore and G. L. Ream, IBM Technical Disclosure Bulletin, vol. 27, No. 6, Nov. 1984 pp. 3266-3267.

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