Liquid drop jet head, ink cartridge and ink jet recording apparatus
AssigneeRicoh Company, Ltd.
InventorsKenichiro Hashimoto, Mitsumi Fujii, Tomomi Katoh, Tsuneo Maki, Kiyoshi Yamaguchi
Life of this patent
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Abstract
A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.
Claims25
A liquid drop jet head, comprising:
- a nozzle jetting a liquid drop;
- a liquid room connected to the nozzle;
- a common liquid room connected to the liquid room;
- a supply opening part supplying the liquid to the common liquid room;
- and
- a pressure generating part that generates a pressure pressurizing the liquid provided in the liquid room,
- wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.
An ink jet recording apparatus, comprising an ink jet head jetting the ink drop, the ink jet head includes
- a nozzle jetting a liquid drop,
- a liquid room connected to the nozzle,
- a common liquid room connected to the liquid room,
- a supply opening part supplying the liquid to the common liquid room, and
- a pressure generating part which generates a pressure pressurizing the liquid provided in the liquid room,
- wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.
Dependencies are inferred from the claim text.