Ink jet printing head
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United States of America Patent
Stats
-
Dec 14, 1982
Grant Date -
N/A
app pub date -
Sep 22, 1980
filing date -
Sep 21, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet printing head of simple construction includes two supply channels and a pressure chamber which are substantially coplanar with the nozzle. A piezoelectric element acts to decrease the pressure chamber volume and eject an ink droplet from the nozzle. A smoothly curved supply channel inlet assures that vapor in the pressure chamber is easily removed. Ink refills the pressure chamber from a transverse supply pipe feeding two supply channels when the chamber volume increases after ejection of a drop.
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Family
International Classification(s)
Cited Art Landscape
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