Patent Number: 8,714,705

Title: Liquid ejection head

Abstract: A liquid ejection head includes a plurality of pressure chambers, respectively communicating with a plurality of ejection orifices for ejecting a liquid, for storing the liquid to be ejected from the plurality of ejection orifices. At least a part of a wall portion forming each of the plurality of pressure chambers is formed of a piezoelectric member, and the plurality of pressure chambers causes the plurality of ejection orifices to eject the liquid by deformation of the piezoelectric member. A plurality of space portions is arranged in parallel to the plurality of pressure chambers at intervals, with some of the plurality of space portions being decompressable. A gas permeable member is provided between the pressure chambers and the decompressable space portions so that a gas inside the pressure chambers is exhausted via the decompressable space portions.

Inventors: Hasegawa; Mitsutoshi (Yokohama, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: B41J 2/19 (20060101); B41J 2/14 (20060101)

Expiration Date: 5/06/12018