Thermal edge jet drop-on-demand ink jet print head

Details Thermal edge jet drop-on-demand ink jet print head Thermal edge jet drop-on-demand ink jet print head

1990-05-16

1991-10-22

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 76PH, B41J 205

Patent

active

050599895

ABSTRACT:
A thermal drop-on-demand ink jet print head in which conductor electrodes are formed on opposed surfaces of a print head substrate and extend to the edge of the substrate. An array of heater elements is formed on the edge of the substrate in electrical contact with the conductor electrodes. A nozzle plate is mounted with a nozzle aligned with each heater element, and a manifold is positioned to provide ink to the space between the nozzle plate and the edge of the substrate so that a drop of ink can be ejected from the nozzle each time the associated heater element is energized with a data pulse applied to a selected one of the conductor electrodes.

REFERENCES:
patent: 4520373 (1985-05-01), Ayata
patent: 4571599 (1986-02-01), Rezanka
patent: 4611219 (1986-09-01), Sugitani
patent: 4764659 (1988-08-01), Minami
patent: 4866461 (1989-09-01), Piatt
Bubble Ink Jet Head; IBM Tech. Disc. Bulletin, vol. 31, No. 10, Mar. 1989, pp. 3-4.

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