Liquid ejection head
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Mar 20, 2017
filing date -
Mar 22, 2016
priority date (Note) -
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Abstract
A liquid ejection head includes: a piezoelectric actuator configured to be deformed depending on a driving pulse applied thereto so as to eject liquid filled in a pressure chamber from a nozzle, a ratio of a first local maximum value which is a largest value among a plurality of local maximum values of an ejection speed of the liquid depending on a pulse width and a second local maximum value which is a second largest value thereamong satisfying a predetermined condition; and a control unit configured to successively apply a first driving pulse and a second driving pulse to the piezoelectric actuator.
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