Incremental printing of symbolic information – Ink jet – Ejector mechanism
Patent
1996-11-26
1998-05-19
Hartary, Joseph W.
Incremental printing of symbolic information
Ink jet
Ejector mechanism
347 47, B41J 205
Patent
active
057542023
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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Patent Abstracts of Japan, English-language Abstract of JP 63-182152, p. M-769.
Hirose Takesada
Hirota Tetsuro
Obu Makoto
Ohtsuki Hideki
Sekiya Takuro
Hartary Joseph W.
Ricoh & Company, Ltd.
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