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US 6,142,613 AGranted
Liquid discharging head
AssigneeCanon Kabushiki Kaisha
InventorsYoshie Asakawa, Toshio Kashino, Takeshi Okazaki, Aya Yoshihira, Kiyomitsu Kudo
Life of this patent
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Abstract
A liquid discharging head having a discharge port, a liquid flow path communicating with the discharge port, a bubble generation area on the liquid flow path, and a movable member. The movable member has a free end on the discharge port side, and the free end is shiftable when a bubble is generated in the bubble generation area. The movable member has a fluid element upstream of the bubble generation area.
Claims2
A liquid discharging head comprising:
- a discharge port for discharging a liquid;
- a liquid flow path communicating with said discharge port;
- a bubble generation area provided on said liquid flow path to generate a bubble in the liquid;
- and
- a movable member having a free end on the side of said discharge port, the free end being shiftable upon generation of the bubble in said bubble generation area,
- wherein said movable member has a fluid element upstream of said bubble generation area.
3 more elements
A liquid discharging head comprising:
- a liquid chamber for supplying a liquid to be discharged;
- a discharge port for discharging the liquid in said liquid chamber;
- a liquid flow path communicating with said discharge port;
- a bubble generation area provided on said liquid flow path to generate a bubble in the liquid;
- and
- a separation wall provided with a movable member having a free end on the side of said discharge port, the free end being shiftable upon generation of the bubble in said bubble generation area,
- wherein by said separation wall, said liquid flow path defines a first liquid flow path that directly communicates with said liquid chamber and said discharge port, and a second liquid flow path having said bubble generation area, and said separation wall has a protecting portion upstream of said bubble generation area, said projecting portion projecting toward said bubble generation area on a side of said bubble generation area of said separation wall.
4 more elements
Dependencies are inferred from the claim text.