Ink jet printing method and device
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United States of America Patent
Stats
-
Oct 8, 1985
Grant Date -
N/A
app pub date -
Oct 26, 1983
filing date -
Oct 26, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A droplet of ink 11 is expelled from a nozzle in a wall, so as to strike a printing medium, by suddenly moving the wall towards the ink 11 with which it is in contact. This movement is effected by energizing a piezoelectric sleeve. The ink droplet is expelled by virtue of the inertia of the ink resisting the movement of the wall and creating pressure. Practical embodiments are described in which the wall containing the nozzle is formed by the tapered end of a capillary tube.
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