| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid jet device capable of realizing the optimization of a minute vibration signal by taking an environmental temperature and an ink temperature as parameter and matching ink temperatures between a jetting nozzle and a non-jetting nozzle as much as possible.SOLUTION: A fluid jet device, including a first temperature sensor for detecting an ink temperature and a second temperature sensor for detecting an environmental temperature around a fluid jet head, performs: generating a drive signal COM including a jetting voltage Vh for jetting an ink droplet on the basis of the temperature detected by the first temperature sensor and a minute vibration voltage Vfor minutely vibrating meniscus of the ink; setting a coefficient in accordance with a difference between the temperature of the ink and that of the environment; and controlling energy of a minute vibration by applying the minute vibration voltage Vbased on the coefficient, and applying a jetting voltage Vh to pressure-generation means corresponding to a nozzle opening, while applying the minute vibration voltage Vto pressure-generation means corresponding to a nozzle opening that jets no ink droplet. |
