| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a liquid ejection device reducing a temperature difference of liquid among nozzles and capable of uniformizing ejection characteristics in each nozzle to be constant.SOLUTION: A liquid ejection device can generate an ejection driving pulse DP ejecting ink and a plurality of fine vibration driving pulses VP causing pressure variations of the ink inside pressure chambers 26 to be generated in such a degree that the ink is not ejected. The ejection driving pulse DP includes: a first expansion element p1 varying from a reference potential V4 to a first potential V1 lower than the reference potential V4 and expanding the pressure chambers 26; and a first contraction element p3 varying from the first potential V1 to the reference potential V4 and contracting the pressure chambers 26. Each of the plurality of fine vibration driving pulses VP comprises: a second contraction element p5 varying from a second potential V2 lower than the reference potential V4 to a third potential V3 higher than the second potential V2 and the first potential V1 and lower than the reference potential V4 and contracting the pressure chambers 26; and second expansion element p7 varying from the third potential V3 to the second potential V2 and expanding the pressure chambers 26.</p> |
