Patent ID: 7909439
Filing Date: 2011-03-22
Classification: B41J

Abstract:
1. A liquid ejecting head comprising: a flow passage forming substrate which is provided with a liquid passage having a pressure generating chamber communicating with a nozzle opening for ejecting a liquid and a communication section communicating with the liquid passage; an elastic film which is formed above the flow passage forming substrate and has an opening in an area opposed to the communication section; a pressure generating unit which applies pressure to the inside of the pressure generating chamber; and a reservoir forming substrate which is adhered onto the flow passage forming substrate above a side of the pressure generating unit and is provided with a reservoir section communicating with the communication section to form a part of a reservoir, wherein an intermediate layer patterned inward from the opening of the elastic film is formed in an area which is a periphery of the communication section above the elastic film and corresponds to the liquid passage, and the flow passage forming substrate and the reservoir forming substrate are adhered to each other through at least the intermediate layer, and wherein an end portion of the intermediate layer above a side of the opening of the elastic film is formed as a tapered portion of which a thickness is gradually smaller, and a cross-section shape in a direction in which the thickness of the tapered portion is gradually smaller is a concavely curved plane.