US Patent 7618130 Liquid jet head and liquid jet apparatus

Provided are a liquid jet head capable of preventing occurrence of crosstalk and obtaining a stable liquid ejecting property and a liquid jet apparatus. Partitions 11 at both sides in a width direction of a pressure generating chamber 12 are provided so as to extend to the vicinity of an end of a reservoir portion 32 at the pressure generating chamber 12 side. Liquid supply paths 14 and communicating paths 100 are provided by being divided for each of the pressure generating chambers 12 by the partitions 11 (wall portions 11a). Specifically, each of the liquid supply paths 14 communicates with the pressure generating chamber 12 and is formed to have a width smaller than that of the pressure generating chamber 12, and each of the communicating paths 100 allows the liquid supply path 14 and a communicating portion 13 to communicate with each other and is formed to have a width larger than that of the liquid supply path 14. Thus, occurrence of crosstalk can be prevented and a stable liquid ejecting property can be obtained.