Ink jet array ultrasonic simulation

Details Ink jet array ultrasonic simulation Ink jet array ultrasonic simulation

1980-12-02

1983-01-25

Hartary, Joseph W.

Recorders

Record receiver deforming

310335, 310369, 346140R, G01D 1518

Patent

active

043706622

ABSTRACT:
In an ink jet printing apparatus an ultrasonic transducer is an elongated cylindrical assembly submerged in the ink which is held under pressure in an ink chamber. To provide an array of ink jet filaments having uniform length and uniform drop formation, the acoustic energy of the transducer is focused by the internal wall of the ink chamber toward an ink jet array on an orifice plate. The said invention also generates ink droplets from all jets at the same phase--which simplifies the driving electronics of the array for high resolution printing. In one embodiment the internal chamber wall, in cross-section, is a sector of an ellipse and in another embodiment it is a parabola.

REFERENCES:
patent: 3900162 (1975-08-01), Titus
patent: 4245225 (1981-01-01), Fillmore
patent: 4296417 (1981-10-01), Markham
Fillmore et al., Segmented Crystal Ink Jet Head, IBM TDB, vol. 21, No. 10, Mar. 1979, pp. 3945-3946.

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