Liquid ejecting head and liquid ejecting apparatus

摘要

An ink jet type recording head includes a plurality of pressure generation chambers which are filled with ink, and piezoelectric elements which eject ink droplet through nozzle openings which are provided so as to correspond to each pressure generation chamber by applying pressure to the ink in each pressure generation chamber. The pressure generation chamber has a shape such that the piezoelectric element in the opposite side to a protrusion side in which at least a portion of the piezoelectric element protrudes out of the pressure generation chamber is deformed more easily than that in the protrusion side.

主权项

1. A liquid ejecting head, comprising:
a plurality of pressure generation chambers which are filled with liquid; and piezoelectric elements which eject liquid droplets through nozzle openings, wherein each piezoelectric element corresponds to one of the pressure generation chambers and applies pressure to the liquid in the corresponding pressure generation chamber; wherein a portion of each piezoelectric element protrudes beyond a first end of the corresponding pressure generation chamber in a protrusion direction; and wherein each pressure generation chamber has a shape such that a first width of the pressure generation chamber in a direction orthogonal to the protrusion direction, taken a predetermined distance from the first end of the pressure generation chamber, is narrower than a second width of the pressure generation chamber in the direction orthogonal to the protrusion direction, taken the predetermined distance from a second end of the pressure generation chamber, wherein the second end is opposite the first end.