Liquid droplet ejecting device, inkjet recording apparatus, liquid droplet ejecting method, and storage medium for liquid droplet ejecting method

摘要

A liquid droplet ejecting device includes multiple pressure chambers communicating with multiple nozzles, to contain liquid; a vibration plate, disposed extending along the pressure chambers; multiple piezoelectric elements disposed facing the multiple chambers respectively via the vibration plate; a drive waveform generator to generate a drive voltage for the piezoelectric elements; a residual vibration detector to detect a residual vibration waveform occurring within the pressure chamber after the piezoelectric elements are driven; and a controller to calculate a damping ratio of the residual vibration waveform detected by the residual vibration detector; and to determine whether abnormal ejection occurs.