Ink jet recording apparatus
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United States of America Patent
Stats
-
May 19, 1998
Issued Date -
N/A
app pub date -
Nov 26, 1996
filing date -
Jul 19, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink jet recording apparatus includes a recording head for ejecting droplets of ink and a driving circuit for driving the recording head. The recording head includes a base, a plate on which a plurality of openings are formed; an ink chamber to be filled with ink being formed between the base and the plate; and heater elements, provided in the ink chamber so as to face the openings of the plate, each of which heater elements supplies heat energy to ink adjacent thereto so that the air bubble is generated on each of the heater elements and so that the air bubble grows toward a corresponding one of the openings. An area of each of the openings of the plate is greater than an area each of the heater elements. When the driving circuit activates each of the heater elements, a droplet of ink is ejected due to the air bubble from the corresponding one of the openings of the plate.
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Family
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Cited Art Landscape
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