Liquid jet recording head

Details Liquid jet recording head Liquid jet recording head

1988-10-11

1990-01-30

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1516, B41J 304

Patent

active

048976741

ABSTRACT:
A liquid jet recording head having orifices for discharging liquid droplets therefrom, a liquid chamber for retaining liquid therein, and liquid flow paths connecting the orifices to the liquid chamber. The cross-sectional area of the flow paths gradually decreases from the liquid chamber toward the orifices. Also provided are an energy generating portion in the liquid flow paths and generating energy to be impared to the liquid, and small walls provided upstream of the energy generating portion, whereby the flow of the liquid from the liquid chamber to the energy generating portion is suppressed.

REFERENCES:
patent: 3848118 (1974-11-01), Rittberg
patent: 4216477 (1980-08-01), Matsuda
patent: 4284996 (1981-08-01), Greve
patent: 4317124 (1982-02-01), Shirato et al.
patent: 4334234 (1982-06-01), Shirato
patent: 4394670 (1983-07-01), Sugitani
patent: 4459600 (1984-07-01), Sato
patent: 4475113 (1984-10-01), Lee
patent: 4587534 (1986-05-01), Saito
patent: 4635077 (1987-01-01), Itoh
patent: 4723129 (1988-02-01), Endo
patent: 4723136 (1988-02-01), Suzumura
patent: 4752787 (1988-06-01), Matsumoto

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