Patent ID: 8632170
Filing Date: 2014-01-21
Classification: B41J

Abstract:
1. A liquid ejecting head comprising a passage unit and an actuator unit; wherein: the passage unit includes: the actuator unit is fixed to the surface of the passage unit with a binder and covers the second openings, the actuator unit containing a plurality of actuators which face the second openings and apply ejection energy to the liquid inside the pressure chambers, respectively; the passage unit includes a plurality of plates which are stacked one another and have holes structuring the liquid passages; of the plates, a first plate having the surface of the passage unit, and at least another plate adjacent to the first plate, have a dummy passage which is not in communication with the liquid passages; and one end of the dummy passage extends from and is connected to one or more third openings formed within a fix area of the actuator unit on the surface of the first plate, and an other end of the dummy passage is connected to one or more fourth openings formed on a surface of any of the plates, via a space formed in a plate other than the first plate, the dummy passage being opened to the atmosphere through the one or more fourth openings.