Patent ID: 9636914
Date: 2017-05-02
CPC Classifications: B41J

Claim:
1. A liquid ejecting device, comprising a fluid passage structure formed with multiple nozzles arranged in a particular nozzle arrangement direction and multiple passages respectively communicating with the multiple nozzles, the fluid passage structure comprising: a metallic nozzle plate formed with the multiple nozzles arranged in a nozzle arrangement direction, a planar liquid ejection surface on the metallic nozzle plate; multiple ejection openings extending through the liquid ejection surface, the multiple ejection openings respectively corresponding to the multiple nozzles; multiple convex parts protruding from the liquid ejection surface, each of the convex parts having an apex with a rounded shape, the multiple convex parts being arranged along the nozzle arrangement direction, beside the multiple ejection openings, respectively, and wherein the multiple convex parts are formed by press working applied to the nozzle plate from a side opposite to the liquid ejection surface.