Liquid discharge apparatus and manufacturing method thereof

摘要

To reduce a liquid discharge amount by vibrating meniscuses at high acceleration with displacement of partitions, a plurality of partitions, each formed of a piezoelectric material, are provided to thereby form a plurality of pressure chambers. Each of electrode pairs for shear-deforming each partition is arranged on both sides of a corresponding one of the partitions. A nozzle plate having nozzles each connected to one of the pressure chambers is arranged on the side of a first end of the pressure chambers. Each pressure chamber is formed such that the width of the pressure chamber becomes long as it approaches, from the first end, a second end on the opposite side.

主权项

1. A liquid discharge apparatus comprising:
a plurality of pressure chambers which are formed by a plurality of partitions, each formed of a piezoelectric material; a plurality of electrode pairs, each of which is arranged on both sides of each partition and shear-deforms each partition; and a nozzle member which is arranged on a side of a first end of each pressure chamber and on which nozzles connected to each pressure chamber have been formed, wherein each pressure chamber is formed such that a relatively shorter one of a height and a width of the pressure chamber at the first end becomes long as it approaches, from the first end, a second end on the opposite side.