Droplet discharge head, and image forming apparatus

摘要

Disclosed is a droplet discharge head including a nozzle substrate including a nozzle, an individual liquid chamber substrate including an individual liquid chamber, and a common liquid chamber substrate including a common liquid chamber, wherein the substrates are laminated, wherein a portion of a top surface of the common liquid chamber is flexible, wherein the top surface of the common liquid chamber is disposed at a side opposite to another side at which the nozzle plate is disposed, wherein the common liquid chamber has a shape such that one portion of the common liquid chamber is narrowed in a direction in which the substrates are laminated, wherein a height of a wall of the common liquid chamber in the direction in which the substrates are laminated is constant, and wherein the wall is substantially perpendicular to the top surface.

主权项

1. A droplet discharge head comprising:
a nozzle substrate including a nozzle configured to discharge liquid droplets; an individual liquid chamber substrate in which an individual liquid chamber is formed, wherein the individual liquid chamber is in communication with the nozzle; a common liquid chamber substrate, a common liquid chamber having been formed as a reservoir in said common liquid chamber substrate, the nozzle substrate being disposed to one side of the common liquid chamber substrate; and a flexible member disposed at an opposite side of the common liquid chamber substrate which is opposite to said one side of the common liquid chamber substrate to which the nozzle substrate is disposed, wherein the common liquid chamber is in communication with the individual liquid chamber, wherein the nozzle substrate, the individual liquid chamber substrate, and the common liquid chamber substrate are laminated, wherein a part of the flexible member forms a damper layer disposed at a top surface of the common liquid chamber on said opposite side of the common liquid chamber substrate which is opposite to said one side of which the nozzle substrate is disposed, wherein the common liquid chamber has a shape such that at least one portion of the common liquid chamber is narrowed in a direction in which the nozzle substrate, the individual liquid chamber substrate, and the common liquid chamber substrate are laminated, and wherein a total height, in a direction of the lamination, constituted by a height of a wall that forms an inner wall surface of the reservoir constituting the common liquid chamber substrate and a height of the flexible member disposed above the wall is constant along a longitudinal direction of the common liquid chamber.