Recorder operating with drops of liquid

Details Recorder operating with drops of liquid Recorder operating with drops of liquid

1976-04-29

1978-02-07

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310330, G01D 1518, H01V 700

Patent

active

040729591

ABSTRACT:
A recorder operating with drops of liquid for point-by-point recording of analog curves or alphanumerical characters and of images. Nozzles are arranged in rows for producing the individual points. In front of inlet openings of the nozzles, contacted piezoelectric transducers are arranged so that as a result of electrical potential variation at the contact, ink is expelled from the nozzle. Recording means is located in front of the exit opening of the nozzles, and the transducers are in the form of rod-shaped elements for producing the piezoelectric movements. The transducers are arranged in the form of teeth of a comb, with the free end zone of the rods assigned to one respective inlet opening of each of the nozzles. The rods, with their free front areas, are arranged in front of the inlet openings of the nozzles so that the lengthwise axes of the rods and the lengthwise axes of the nozzles are aligned with the contact on the rods. In this manner, potential variations of the contacts cause a change in the length of the rods.

REFERENCES:
patent: 3418427 (1963-12-01), Jones
patent: 3452360 (1969-06-01), Williamson

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