Ink jet recording apparatus and method capable of performing high-speed recording by controlling the meniscus of ink in discharging orifices
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United States of America Patent
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Jan 18, 1994
Grant Date -
N/A
app pub date -
Apr 23, 1992
filing date -
Apr 26, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An ink is ejected at the same timing from ejection orifices in a number corresponding to an ink quantity 7% or less of an ink quantity ejected from all the ejection enabled ejection orifices of a plurality of ejection orifices of a recording head, and the ink ejection period from all the ejection enabled ejection orifices is set to be 70% or more of the driving period. Since the quantity of an ink ejected per unit time is minimized, and the negative pressure level generated in a common ink chamber can be set to be closest to normal pressure, the amplitude of a refill oscillation is minimized to stabilize ejection, and the driving frequency can be further increased.
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