| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid ejection head with improved bubble discharging property in each nozzle, and to provide a liquid ejection device.SOLUTION: A liquid ejection head includes: a flow passage forming substrate formed with a plurality of pressure generating chambers 11 provided in parallel and communicated with a nozzle for discharging liquid, liquid supply passages communicated with the pressure generating chambers and respectively demarcated by respective partition walls 21, and a manifold 22 storing liquid in common with the plurality of liquid supply passages; and a pressure generating means for generating pressure in the pressure generating chambers. A sidewall surface 52 which demarcates the manifold and partitions between the manifold and the liquid supply passage projects toward the center in a width direction of the liquid supply passage. Regarding the partition wall, width of its end part on the manifold side becomes thinner as it approaches the edge, and the partition walls adjacent to each other are formed to be mirror-symmetrical with respect to the center line in the width direction of the liquid supply passage. |
