Liquid ejecting head, liquid ejecting apparatus and method for manufacturing liquid ejecting head

摘要

A liquid ejecting head includes a communication hole that has a first opening which communicates with a pressure chamber side where pressure is applied to a supplied liquid at one end and a second opening which communicates with a nozzle side ejecting the liquid to which the pressure is applied at the other end, and communicates the pressure chamber and the nozzle with each other, an opening area of the second opening being larger than an opening area of the first opening. An inclined surface that is directed to the second opening is provided on a side where a distance between an edge of the first opening and an edge of the second opening in the first direction is shorter than on the other end side so that stagnation in the flow of the liquid and reduction in bubble discharge are prevented and stable liquid ejection is achieved.

主权项

1. A liquid ejecting head comprising:
a pressure chamber that applies pressure to a liquid which is supplied; a nozzle that ejects the liquid to which the pressure is applied; and a communication hole that includes a first opening which communicates with the pressure chamber side at one end and a second opening which communicates with the nozzle side at the other end and has an opening area larger than an opening area of the first opening, and causes the pressure chamber and the nozzle to communicate with each other, wherein, in the communication hole, a distance between an edge of the first opening and an edge of the second opening in a first direction that is a predetermined in-plane direction of the opening area varies on one end side and the other end side in the first direction, and wherein the communication hole further includes an inclined surface that is directed to the second opening on the side where the distance between the edge of the first opening and the edge of the second opening is shorter than on the other end side in the first direction.