Method for filling liquid into liquid container and apparatus adapted to use such method
AssigneeCanon Kabushiki Kaisha
InventorToru Kubokawa
Life of this patent
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Abstract
Refilling of a used liquid container of a liquid ejector such as an ink-jet apparatus is carried out by sequentially performing the steps of drawing out liquid remaining in the liquid container by way of a liquid outlet port of the liquid container, reducing the inner pressure of the evacuated liquid container by way of the liquid outlet port, and filling liquid from a liquid supply tank into the liquid container by way of the liquid outlet port. The liquid drawn out from the liquid container is fed back into the liquid supply tank.
Claims12
A liquid filling method for filling liquid into a liquid container communicating to a liquid ejection head so as to supply liquid from the inside to the liquid ejection head by way of a liquid outlet port, said method comprising:
- a step of drawing out liquid remaining in said liquid container by way of the liquid outlet port;
- a step of reducing the inner pressure of the evacuated liquid container by way of the liquid outlet port;
- and
- a step of filling liquid from the inside of a liquid supply tank into the liquid container by way of the liquid outlet port.
A liquid filling apparatus for filling liquid into a liquid container communicating to a liquid ejection head so as to supply liquid from the inside to the liquid ejection head by way of a liquid outlet port, said apparatus comprising:
- a liquid drawing out means for drawing out liquid remaining in the liquid container by way of the liquid outlet port;
- a pressure reducing means for reducing the inner pressure of the evacuated liquid container by way of the liquid outlet port;
- a filling means for filling liquid from the inside of said liquid supply tank into the liquid container by way of the liquid outlet port.
Dependencies are inferred from the claim text.