| abstract |
Dispersion of ejection characteristics in a high-density head is large, and a required droplet ejection speed and ejection volume cannot be obtained. Kind Code: A1 A head for discharging a droplet from a nozzle by bending a vibrating plate and displacing the vibrating plate on a vibrating plate forming a part of a wall of a discharge chamber communicating with the nozzle. Thus, the diaphragm 2 has a width of 80 μm or less, and the diaphragm 2 has a hinge structure as a structural part 12 whose rigidity is partially reduced. [Selection diagram] Fig. 1 |