Patent ID: 8678558

Claim:
A liquid ejection head, comprising: a nozzle plate having a plurality of nozzle openings which are arranged side by side in a first direction; a flow path member that is stacked above the nozzle plate; a plurality of first individual flow paths provided to the flow path member and arranged side by side in the first direction, the plurality of first individual flow paths each having a communicating portion that communicates with one of the nozzle openings and a pressure generating chamber that communicates with the communicating portion in a second direction intersecting to the first direction and has a width narrower than a width of the communicating portion in the first direction; and a plurality of second individual flow paths provided in between the first individual flow paths in the flow path member respectively, the plurality of second individual flow paths each having a communicating portion that communicates with one of the nozzle openings and a pressure generating chamber that communicates with the communicating portion in a second direction intersecting to the first direction and has a width narrower than a width of the communicating portion in the first direction, wherein positions with respect to the second direction of the second individual flow paths are different from that of the first individual flow paths, each communicating portion of the second individual flow paths is provided between one pressure generating chamber of the first individual flow paths and the other pressure generating chamber of the first individual flow paths adjacent to the one pressure generating chamber in the first direction.