Ink jet printer drive means

Details Ink jet printer drive means Ink jet printer drive means

1980-10-03

1982-10-12

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

043541976

ABSTRACT:
The ink in an ink jet printer is accelerated by means of cylindrically-shaped electromagnetically energized pressure waves wherein plates of metal serve as electrodes between which a capacitor is discharged. The capacitor along with the resistance losses and the inductance of the leads represent a damped oscillating circuit to reduce the back pressure waves. Other means of damping include a soft hose having an exponentially shaped portion, porous material in a passageway between a pair of air chambers, and a plastic foil placed between the pressure wave drive means and the nozzle.

REFERENCES:
patent: 3683212 (1972-08-01), Zoltan
patent: 3832579 (1974-08-01), Arndt
patent: 4021818 (1977-05-01), Vloten
patent: 4023180 (1977-05-01), Zenner
Krause, K. A.; Focusing Ink Jet Head; IBM TDB, vol. 16, No. 4, Sep. 1973, p. 1168.

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