Droplet generator for an ink jet printer

Details Droplet generator for an ink jet printer Droplet generator for an ink jet printer

1977-02-22

1978-12-26

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

041318994

ABSTRACT:
An ink jet printer having a piezoelectric capillary injector-type droplet generator. The droplet generator includes an integral body having formed within it a single chamber that receives and holds ink under capillary action. A nozzle defined by one or more continuous apertures is formed in the body in communication with the chamber. A piezoelectric crystal actuates a flexural diaphragm that forms one wall of the chamber. The flexing of the diaphragm creates pressure perturbations that force the flow of ink through the nozzle for droplet generation. Also provided are means for damping oscillations of the piezoelectric crystal to prevent unwanted secondary generation of droplets.

REFERENCES:
patent: 3205712 (1965-09-01), Hoff, JR.
patent: 3747120 (1973-07-01), Stemme
patent: 3852773 (1974-12-01), Sicking et al.
patent: 3930260 (1975-12-01), Sicking
patent: 4024544 (1977-05-01), Vernon
patent: 4032928 (1977-06-01), White et al.
patent: 4045801 (1977-08-01), Iwasaki
Lee, H. C. et al., High-Speed Droplet Generator, IBM Tech. Disclosure Bulletin, vol. 15, No. 3, Aug. 1972, p. 909.

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