Liquid ejection device
AssigneeSilverbrook Research Pty Ltd
InventorKia Silverbrook
Life of this patent
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Abstract
A liquid ejection device comprising a nozzle chamber, an ejection paddle located within the nozzle chamber for ejecting liquid from the nozzle chamber though an aperture in one wall of the nozzle chamber when the paddle is moved from a first state into an ejection state, a liquid supply port arranged in a manner such that it is substantially closed by the paddle when the paddle is in the first state, and wherein the nozzle chamber comprises an internal protrusion on a wall structure thereof which is aligned closely adjacent to a rim of the paddle when the paddle is in the first state, and wherein, in the ejection state, at least a portion of the rim of the paddle is spaced apart from the protrusion, thereby forming a liquid refill channel defined between the wall structure and the portion of the rim of the paddle.
Claims5
A liquid ejection device comprising:
- a nozzle chamber,
- an ejection paddle located within the nozzle chamber for ejecting liquid from the nozzle chamber though an aperture in one wall of the nozzle chamber when the paddle is moved from a first state into an ejection state,
- a liquid supply port arranged in a manner such that it is substantially closed by the paddle when the paddle is in the first state;
- wherein the nozzle chamber comprises an internal protrusion on a wall structure thereof which is aligned closely adjacent to a rim of the paddle when the paddle is in the first state, and
- wherein, in the ejection state, at least a portion of the rim of the paddle is spaced apart from the protrusion, thereby forming a liquid refill channel defined between the wall structure and the portion of the rim of the paddle.
Dependencies are inferred from the claim text.