Sidewall actuator for a high density ink jet printhead

Details Sidewall actuator for a high density ink jet printhead Sidewall actuator for a high density ink jet printhead

1991-08-16

1993-07-13

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310333, B41J 2045

Patent

active

052278131

ABSTRACT:
A sidewall actuated channel array for a high density ink jet printhead. The sidewall actuator includes a top wall, a bottom wall and at least one elongated liquid confining channel defined by the top wall, the bottom wall and sidewalls. The actuator sidewall is comprised of a first actuator sidewall section formed of a piezoelectric material poled in a first direction perpendicular to a first channel and attached to the top wall, a second actuator sidewall section attached to the first sidewall section and the bottom wall, and means for applying an electric field across the first actuator sidewall section and perpendicular to the direction of polarization. When the electric field is applied across the first sidewall section, the actuator sidewall engages in a motion which produces an ink ejecting pressure pulse in the channel.

REFERENCES:
patent: 3857049 (1974-12-01), Zoltan
patent: 4536097 (1985-08-01), Nilsson
patent: 4584590 (1986-04-01), Fischbeck et al.
patent: 4825227 (1989-04-01), Fishbeck et al.
patent: 4879568 (1989-11-01), Bartky et al.
patent: 4887100 (1989-12-01), Michaelis et al.
Wallace, David B., "A Method of Characteristic Model of a Drop-on-Demand Ink-Jet Device Using an Integral Method Drop Formation Model", 89-WA/FE-4 (1989).

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