| 摘要 |
<p>PROBLEM TO BE SOLVED: To make discharge condition of liquid discharged from each nozzle uniform, by increasing an internal space of a liquid supply chamber for supplying liquid to a discharge groove, without thickening thickness of a liquid jet head 1.SOLUTION: The liquid jet head 1 includes a lamination structure in which a cover plate 3, an actuator substrate 2 and a nozzle plate 4 are laminated. The actuator substrate 2 includes a groove row where a discharge groove (a first or second discharge groove 6a, 6b) and a dummy groove (a first or second dummy groove 7a, 7b) are arranged alternately, and a common chamber 9 connecting to one side end of the discharge groove. The cover plate 3 includes one side room 10 connecting to the common chamber 9 and another side room (a first or second liquid chamber 10a, 10b)) connecting to another side end of the discharge groove, and is mounted on an upper end surface TS of the actuator substrate 2, to cover the nozzle row. The nozzle plate 4 includes nozzles connecting to the discharge groove and is mounted on a lower end surface BS of the actuator substrate 2, to cover the nozzle row.</p> |
