Patent ID: 9193163
Filing Date: 2015-11-24
Classification: B41J,Y10T

Abstract:
1. A liquid discharge apparatus comprising: a first substrate and a second substrate; a plurality of partitions, constituted by a piezoelectric material, which form a plurality of individual liquid chambers extending in a longitudinal direction; a nozzle member which is arranged on a side of a first end of the individual liquid chambers, and on which nozzles connected to corresponding ones of the individual liquid chambers are formed; a common liquid chamber forming member which is arranged on a side of a second end opposite to the first end of the individual liquid chambers, and forms a common liquid chamber connected to the plurality of individual liquid chambers; and a plurality of pairs of electrodes, each of which is arranged on both side faces of corresponding ones of the partitions, such that the each partition is divided into a movable region to which an electric field for shear-deforming the partition at a portion on the side of the nozzle is applied and an immovable region to which the electric field is not applied at a portion on the side of the common liquid chamber, wherein each individual liquid chamber is formed such that a cross-sectional area of a cross-section along a face perpendicular to the longitudinal direction at the second end is wider than a cross-sectional area of a cross-section along the face perpendicular to the longitudinal direction at a first boundary point closest to the first end on a boundary between the movable region and the immovable region.