Ink jet printing head having plurality of ink-jetting units disp

Details Ink jet printing head having plurality of ink-jetting units disp Ink jet printing head having plurality of ink-jetting units disp

1986-10-14

1988-09-06

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

047696540

ABSTRACT:
A printing head for ink-jet printing comprises at least one ink-flow passage in the form of a hollow chamber and at least one ink-jet nozzle coupled to the ink-flow passage. The hollow chamber has a substantially uniform depth over substantially the entire area thereof. Preferably, the head comprises at least two laminated sheet-like members, one of the members having a hollow formed therein to comprise the ink-flow passage, and the other of the members having at least one nozzle formed therein. The head further comprises a flexible wall in communication with the hollowed chamber and a piezoelectric transducer connected to the flexible wall for producing ink-jetting pressure changes in the hollow chamber. Also disclosed are multi-nozzle printing heads with the chambers arranged in a circular configuration, and stacked double and triple decker arrangements.

REFERENCES:
patent: 3747120 (1973-07-01), Stemme
patent: 4104646 (1978-08-01), Fischbeck
patent: 4124853 (1978-11-01), Kattner
patent: 4189734 (1980-02-01), Kyser
patent: 4320406 (1982-03-01), Heinzl
patent: 4330787 (1982-05-01), Sato
patent: 4364067 (1982-12-01), Koto
patent: 4455560 (1984-06-01), Louzil
patent: 4521788 (1985-06-01), Kimura

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