Liquid ejecting device, head unit, and liquid ejecting method

摘要

A liquid ejecting device includes: a piezoelectric element that is deformed by applying at least one drive waveform among a plurality of drive waveforms to the piezoelectric element, the plurality of drive waveforms including a first drive waveform and a second drive waveform; a cavity that is filled with a liquid and is increased or decreased in internal pressure due to deformation of the piezoelectric element; a nozzle that communicates with the cavity, and ejects the liquid as a liquid droplet; and a selection section that selects at least one drive waveform from the plurality of drive waveforms, the liquid droplet including a first liquid droplet ejected when the first drive waveform has been selected, and a second liquid droplet ejected when the second drive waveform has been selected, an ejection volume of the first liquid droplet being almost equal to an ejection volume of the second liquid droplet.

主权项

1. A liquid ejecting device comprising:
a piezoelectric element that is deformed by applying at least one drive waveform among a plurality of drive waveforms to the piezoelectric element, the plurality of drive waveforms including a first drive waveform and a second drive waveform that differs from the first drive waveform; a cavity that is filled with a liquid and is increased or decreased in internal pressure due to deformation of the piezoelectric element; a nozzle that communicates with the cavity and ejects the liquid as a liquid droplet through increase and decrease in the internal pressure of the cavity; and a selection section that selects at least one drive waveform from the plurality of drive waveforms, and applies a selected drive waveform to the piezoelectric element, the liquid droplet ejected from the nozzle including a first liquid droplet ejected when the first drive waveform has been selected by the selection section and applied to the piezoelectric element, and a second liquid droplet ejected when the second drive waveform has been selected by the selection section and applied to the piezoelectric element, an ejection volume of the first liquid droplet being substantially equal to an ejection volume of the second liquid droplet, the second liquid droplet being the next droplet ejected from the nozzle subsequently to the first liquid droplet being ejected from the nozzle, and the first drive waveform and the second drive waveform differing in slope.