Droplet jet device

Details Droplet jet device Droplet jet device

1992-03-09

1995-04-25

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 2045

Patent

active

054103410

ABSTRACT:
A droplet jet device for use in an ink jet printer. The device has a bottom ceramics plate into which parallel grooves for storing ink are cut. A covering plate is either fixedly or slidably mounted over the grooved side of the ceramic plate to enclose the grooves. The sidewalls of the grooves have electrodes mounted thereon. One end of each groove is connected to an opening serving as an ink jet and the other end is connected to a ink source. The ink jets may be smaller grooves connecting the grooves to a print face of the bottom ceramics plate or may be ends of smaller grooves in the cover plate, one of the smaller grooves in the cover plate partially overlapping a corresponding groove in the ceramics base plate. When a current is applied to selected electrodes, the associated walls are deformed by a piezoelectric effect to compress the groove and eject an ink droplet from the ink jet.

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