Patent ID: 7573179
Filing Date: 2009-08-11
Classification: B41J

Abstract:
1. A driving method of a liquid drop ejecting head in which an oscillatory wave is imparted to a liquid accommodated in a pressure chamber using an electromechanical transducer which is driven by applying a predetermined driving waveform to the electromechanical transducer, thereby discharging a liquid drop from a nozzle to record an image, the driving method comprising: detecting an environmental temperature, and expanding and/or contracting the driving waveform to be applied to the electromechanical transducer in a voltage axial direction and a time axial direction in accordance with the detected environmental temperature, and applying the resulting driving waveform to the electromechanical transducer, and in the driving waveform to be applied to the electromechanical transducer, a waveform of a reverberation adjustor, which adjusts a residual oscillation of the liquid, is adjusted in accordance with the detected environmental temperature and is applied to the electromechanical transducer.