Patent ID: 9211702
Filing Date: 2015-12-15
Classification: B41J

Abstract:
1. A liquid ejecting apparatus comprising: a liquid ejecting head which causes a pressure fluctuation in liquid in a pressurizing chamber by driving a pressure generator, and ejects the liquid from a nozzle which communicates with the pressurizing chamber using the pressure fluctuation, wherein it is possible to generate a first driving waveform in which liquid is ejected from the nozzle by driving the pressure generator, and a plurality of second driving waveforms which cause a pressure fluctuation in liquid in the pressurizing chamber to an extent of not causing the liquid to be ejected from the nozzle, wherein the first driving waveform includes a first expansion element which causes the pressurizing chamber to be expanded by being changed from a reference potential which is a reference of a change in potential to a first potential which is lower than the reference potential, and a first contraction element which causes the pressurizing chamber to be contracted by being changed from the first potential to the reference potential, and wherein the second driving waveform includes a second contraction element which causes the pressurizing chamber to be contracted by being changed from a second potential which is lower than the reference potential to a third potential which is higher than the second potential and the first potential, and is lower than the reference potential, and a second expansion element which causes the pressurizing chamber to be expanded by being changed from the third potential to the second potential, wherein a second driving waveform group which is formed of a plurality of sets of the second driving waveforms is generated, and wherein a front side changing element which causes a change from the reference potential to the second potential is generated before the second driving waveform group.