Ink jet printing apparatus with orifice array cleaning system

Details Ink jet printing apparatus with orifice array cleaning system Ink jet printing apparatus with orifice array cleaning system

1985-04-12

1986-05-27

Goldberg, E. A.

Recorders

Record receiver deforming

346140R, 134169R, 210410, 210411, G01D 1518, B08B 900, B01D 2118

Patent

active

045918732

ABSTRACT:
A cleaning system for ink jet printing orifices includes cooperative elements which provide varying pressure differentials across the orifice plate that oscillate ink into and out of the orifices. In one embodiment the pressure differentials are implemented by varying the impedance to ink cross-flow through a print head cavity while pressurizing a region around the exterior of the orifices.

REFERENCES:
patent: 3182670 (1965-05-01), Howell
patent: 4007465 (1977-02-01), Chaudharcy
patent: 4080608 (1978-03-01), Stoneburner et al.
patent: 4282105 (1981-08-01), Crowe
patent: 4296418 (1981-10-01), Yamazaki et al.

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