Patent ID: 8376539

Claim:
A liquid ejecting head comprising: a liquid ejecting head body that ejects liquid from a nozzle orifice; and a liquid supply member that supplies liquid from a liquid supply source that contains the liquid to the liquid ejecting head body, the liquid supply member including a filter chamber group that is made up of a plurality of filter chambers arranged in one direction, a filter being provided inside each of the filter chambers, each of the filter chambers being in fluid communication with the nozzle orifice, a flow channel formation member in which a plurality of flow channel groove portions is formed, each of the flow channel groove portions being in fluid communication with the corresponding one of the filter chambers of the filter chamber group, the flow channel groove portions having different lengths, a flexible member that seals an opening of each of the flow channel groove portions to form a liquid flow channel, a pressure reception portion formation plate that has an opening formed for each of the liquid flow channels, each of the openings overlapping the corresponding one of the liquid flow channels formed in the flow channel formation member with the flexible member sandwiched between the pressure reception portion formation plate and the flow channel formation member to form a pressure reception portion, which is a part of the flexible member that is exposed at an area of each of the openings, and valve members each of which is urged by an urging member to close the corresponding one of the liquid flow channels, the valve member opening the liquid flow channel against an urging force applied by the urging member as a result of a change in position of the pressure reception portion on the basis of a pressure change inside the liquid flow channel, wherein the openings of the pressure reception portion formation plate have a uniform shape.