Aspirated ink jet printer head

Details Aspirated ink jet printer head Aspirated ink jet printer head

1979-04-23

1981-04-07

Hartary, Joseph W.

Recorders

Record receiver deforming

G01D 1518

Patent

active

042609968

ABSTRACT:
Disclosed is an ink jet printer head employing an ink droplet aspirator which includes a housing having a tunnel therein spaced from an ink jet nozzle which emits a stream of ink droplets which pass through the tunnel. A gas stream is also directed through the tunnel at substantially the same velocity as the ink stream. While the upper and lower walls of the aspirator tunnel are formed of sintered metal thereby forming the deflection electrodes, the sidewalls of the tunnel are formed of a dielectric material and are made movable, for example by collapsing toward and away from the tunnel top and bottom walls (deflection electrodes) so as to inhibit sidewall contamination during start up and shut down of the ink stream.

REFERENCES:
patent: 4097872 (1978-06-01), Giordano
patent: 4160982 (1979-07-01), Keur
Krause, K. A., Ink Jet Head, IBM Tech. Disc. Bulletin, vol. 19, No. 8, Jan. 1977, pp. 3216-3217.

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