Drop-on-demand ink jet print head

Details Drop-on-demand ink jet print head Drop-on-demand ink jet print head

1986-10-27

1987-10-06

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310328, 310369, G01D 1516

Patent

active

046986448

ABSTRACT:
An ink jet drop-on-demand print head comprises a plurality of tubular piezoelectric transducers each having two electrodes formed by an electrically conducting coating. A housing member holds the transducers in a position which includes at least one row of transducers. A substrate includes a plurality of electrical conductors, and the substrate is positioned so that each electrical conductor is adjacent one of the electrodes. A resilient connector means is provided which is not conductive along its length but is conductive across its width, and the connector means is positioned to make contact with a selected one of the electrical conductors and only one of the electrodes of one of the transducers. In a specific embodiment, the substrate comprises a flat conductor cable, and in a second embodiment the substrate comprises a printed circuit board.

REFERENCES:
patent: 3683212 (1972-08-01), Zoltan
patent: 4357061 (1982-11-01), Crosby
patent: 4390886 (1983-06-01), Sultan
patent: 4402562 (1983-09-01), Sado
patent: 4418356 (1983-11-01), Reece
patent: 4430594 (1984-02-01), Bork
patent: 4485388 (1984-11-01), Sayko
patent: 4502059 (1985-02-01), Blessington
patent: 4584591 (1986-04-01), Kindler
patent: 4588999 (1986-05-01), Depta et al.

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