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US 7,244,016 B2Granted
Ink jet head and its manufacturing method, and ink jet printer
AssigneeSeiko Epson Corporation
InventorsSetsuya Iwashita, Takamitsu Higuchi, Hiromu Miyazawa, Satoshi Nebashi
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Abstract
An ink jet head is provided that can effectively suppress operational interferences among adjacent cavities, and is capable of ultra-high-density and high-speed printing. The ink jet head is equipped with a plurality of cavities each having a volume that is variable by a deformation operation of a piezoelectric element, wherein beam members are provided between inner walls that interpose the cavity.
Claims7
An ink jet head comprising:
- a piezoelectric element;
- and
- a plurality of cavities, each cavity provided below the piezoelectric element and having a volume that changes by a deformation of the piezoelectric element;
- wherein each cavity is provided with beam members that connect inner walls of the cavity;
- and
- wherein the beam members and the inner walls of the cavity where the beam members are installed both comprise a metal material.
3 more elements
Dependencies are inferred from the claim text.