Patent ID: 9272294
Filing Date: 2016-03-01
CPC Classification: B05B,B41J

Claim Text:
1. A liquid ejecting head comprising: a flow channel formation plate including a common liquid chamber that communicates with a plurality of pressure chambers, and including a dummy flow channel portion that is formed opposing the common liquid chamber, wherein the common liquid chamber includes a first acutely angled corner portion that is defined by a first surface that follows a lengthwise direction of the common liquid chamber and a second surface that intersects a close-packed plane of a crystal structure of the flow channel formation plate, the first acutely angled corner portion extending toward an edge of the flow channel formation plate; the dummy flow channel portion includes a second acutely angled corner portion that is defined by the close-packed plane of the crystal structure and a third surface that intersects the close-packed plane, the second acutely angled corner portion extending toward the edge of the flow channel formation plate; and the second acutely angled corner includes an acute angle that is smaller than an acute angle of the first acutely angled corner portion.