Method of operating pulsed droplet deposition apparatus

Details Method of operating pulsed droplet deposition apparatus Method of operating pulsed droplet deposition apparatus

1991-09-16

1992-08-11

Miller, Jr., George H.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346140R, B41J 2045

Patent

active

051383330

ABSTRACT:
A method of operating a pulsed droplet deposition apparatus for ejecting a liquid droplet from a nozzle supplied by a liquid retaining chamber comprises applying a first energy pulse to the liquid in the chamber of sufficient energy to effect expulsion of a droplet from the nozzle and thereafter applying a further energy pulse to the liquid in the chamber to insure that the meniscus of the body of liquid to which the droplet is attached is convex in the direction of motion of the droplet at the time of detachment of the droplet, so as to propel the droplet along the axis of the nozzle. The second pulse has an energy content which is insufficient to alone effect droplet ejection.

REFERENCES:
patent: 4104646 (1978-08-01), Fischbeck
patent: 4112433 (1978-09-01), Vernon
patent: 4385304 (1983-05-01), Sniderman
patent: 4393384 (1983-06-01), Kyser
patent: 4471363 (1984-09-01), Hanaoka
patent: 4491851 (1985-01-01), Mizuno et al.
patent: 4509059 (1985-04-01), Howkins
patent: 4646106 (1987-02-01), Howkins

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