Ink jet head, ink jet apparatus and driving method therefor
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United States of America Patent
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-
Apr 28, 1998
Issued Date -
N/A
app pub date -
Sep 13, 1995
filing date -
Jun 1, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
An ink jet head has plural liquid ink paths, each having a discharge opening for discharging ink when energy is applied to ink in a corresponding ink path, and a common ink chamber communicating with an end of each ink path for supplying ink to the discharge openings. The discharge openings are disposed in plural groups, which are consecutively driven by simultaneously applying energy to ink paths corresponding to selected discharge openings in a given group. The ends of the ink paths are disposed in the common ink chamber in groups consecutively arranged in accordance with the driving order of the discharge opening groups, and each ink path includes a portion proximate to that end which is directed away from the next consecutively arranged ink path group. This arrangement suppresses pressure interference between the consecutively driven discharge opening groups and enables high-quality, high-speed recording in a compact recording head.
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