Low-voltage actuatable ink droplet ejection device

摘要

An ink droplet ejection array is assembled by a piezoelectric transducer and a plate member. The piezoelectric transducer has a surface formed with a plurality of ribs which define a plurality of grooves. The plate member is attached to the surface of the piezoelectric transducer to cover the grooves and to thus define a plurality of ink channels. Ink contained in the ink channel is ejected when the volume of the ink channel is instantaneously reduced resulting from deformation of the associated ribs. The plate member is flexible to the deformation of the ribs so as not to restrain the deformation thereof.