Inkjet head driving method and inkjet recording apparatus
Number of patents in Portfolio can not be more than 2000
United States of America
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Nov 12, 2024
Grant Date -
Feb 9, 2023
app pub date -
Dec 25, 2019
filing date -
Dec 25, 2019
priority date (Note) -
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Abstract
An inkjet head driving method includes applying a voltage signal having a combined drive waveform that includes unit drive waveforms to a pressure generator and causing a nozzle to jet ink droplets such that the droplets land on a medium as one droplet. Each unit drive waveform includes a first pulse waveform for jetting a droplet and a second pulse waveform for pulling back the jetted droplet. The first and second pulse waveforms each include an expansion part for expanding a pressure chamber and a following contraction part for contracting the chamber. The combined drive waveform includes a first unit drive waveform and a following second unit drive waveform. A voltage amplitude of the contraction part of the second pulse waveform in the second unit waveform is greater than that of the contraction part of the second pulse waveform in the first unit drive waveform.
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