LIQUID DISCHARGING APPARATUS, HEAD UNIT, CONTROL METHOD FOR LIQUID DISCHARGING APPARATUS, AND CONTROL PROGRAM FOR LIQUID DISCHARGING APPARATUS

摘要

Provided is a liquid discharging apparatus including a waveform signal generator that generates a drive waveform signal which includes a plurality of waveforms including an inspection waveform; a first discharger including a first piezoelectric element that is displaced by being supplied with a first drive signal; a first switch that is capable of switching whether to supply the first drive signal to the first piezoelectric element for each unit period; and a detector that detects residual vibration occurring in the first discharger after the first drive signal including the inspection waveform is supplied to the first piezoelectric element, in which the first switch stops supply of the first drive signal to the first piezoelectric element during a unit period that precedes one unit period when the first drive signal including the inspection waveform is supplied to the first piezoelectric element during the one unit period.

主权项

1. A liquid discharging apparatus comprising:
a waveform signal generator that generates a drive waveform signal which includes a plurality of waveforms including an inspection waveform; a first discharger including
a first piezoelectric element that is displaced by being supplied with a first drive signal which includes a waveform selected from the plurality of waveforms included in the drive waveform signal,a first pressure chamber that has internal pressure increased or decreased by the displacement of the first piezoelectric element, anda first nozzle that communicates with the first pressure chamber and is capable of discharging liquid filling the first pressure chamber in response to an increase or a decrease in the internal pressure of the first pressure chamber; a first switch that is capable of switching whether to supply the first drive signal to the first piezoelectric element for each unit period; and a detector that detects residual vibration occurring in the first discharger after the first drive signal including the inspection waveform is supplied to the first piezoelectric element, wherein the first switch stops supply of the first drive signal to the first piezoelectric element during a unit period that precedes one unit period when the first drive signal including the inspection waveform is supplied to the first piezoelectric element during the one unit period.