Acoustic ink printhead with variable size droplet ejection openi

Details Acoustic ink printhead with variable size droplet ejection openi Acoustic ink printhead with variable size droplet ejection openi

1995-11-13

1998-10-13

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2135

Patent

active

058219587

ABSTRACT:
An acoustic ink printhead includes a substrate having an inlet side, an outlet side, and a plurality of acoustic lenses acoustically coupled to a substrate. Each acoustic lens has an identical focal length for focusing acoustic energy at an associated position adjacent to the substrate. A top plate is attached to the substrate to define a channel that permits ink flow between the inlet side and the outlet side. The top plate has a plurality of variable size openings to permit ejection of acoustically impelled droplets of ink flowing in the channel. Because of the varying size of the openings in the top plate, the ink menisci in the plurality of openings is maintained at a substantially constant distance with respect to the substrate, improving uniformity of droplets ejected.

REFERENCES:
patent: 4308547 (1981-12-01), Lovelady et al.
patent: 4697195 (1987-09-01), Quate et al.
patent: 4719476 (1988-01-01), Elrod et al.
patent: 4719480 (1988-01-01), Elrod et al.
patent: 4748461 (1988-05-01), Elrod
patent: 4751529 (1988-06-01), Elrod et al.
patent: 4751530 (1988-06-01), Elrod et al.
patent: 4751534 (1988-06-01), Elrod et al.
patent: 4959674 (1990-09-01), Khri-Yakub et al.
patent: 5028937 (1991-07-01), Khuri-Yakub et al.
patent: 5041849 (1991-08-01), Quate et al.
patent: 5077565 (1991-12-01), Shibaike et al.
patent: 5087931 (1992-02-01), Rawson
patent: 5111220 (1992-05-01), Hadimioglu et al.
patent: 5121141 (1992-06-01), Hadimioglu et al.
patent: 5122818 (1992-06-01), Elrod et al.
patent: 5142307 (1992-08-01), Elrod et al.
patent: 5159348 (1992-10-01), Dietl et al.
patent: 5216451 (1993-06-01), Rawson et al.
patent: 5450107 (1995-09-01), Rawson

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