Liquid supplying device and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorHideya Yokouchi
Life of this patent
Estimating the term…
Abstract
A liquid supplying device includes a liquid supplying flow path that supplies a liquid from an upstream side as a liquid supplying source side toward a downstream side on which the liquid is consumed, a pump that is driven for changing the volume of a pump chamber that is a part of the liquid supplying flow path, and a flow velocity reducing unit that reduces the flow velocity of the liquid passing through the liquid supplying flow path on the upstream side of the pump chamber by changing flow path resistance of the liquid supplying flow path in accordance with the speed of change of the volume of the pump chamber, in a case where the pump is driven for a suction operation that increases the volume of the pump chamber.
Claims11
A liquid supplying device comprising:
- a liquid supplying flow path that supplies a liquid from an upstream side as a liquid supplying source side toward a downstream side on which the liquid is consumed;
- a pump that is driven for changing the volume of a pump chamber that is a part of the liquid supplying flow path;
- and
- a flow velocity reducing unit that reduces the flow velocity of the liquid passing through the liquid supplying flow path on the upstream side of the pump chamber by changing flow path resistance of the liquid supplying flow path in accordance with the speed of change of the volume of the pump chamber, in a case where the pump is driven for a suction operation that increases the volume of the pump chamber.
A liquid supplying device comprising:
- a liquid supplying flow path that supplies a liquid from an upstream side as a liquid supplying source side toward a downstream side on which the liquid is consumed;
- a pump that is driven for changing the volume of a pump chamber that is a part of the liquid supplying flow path;
- and
- a flow velocity reducing unit that reduces the flow velocity of the liquid passing through the liquid supplying flow path to be a second flow velocity that is lower than a first flow velocity by changing flow path resistance of the liquid supplying flow path which is disposed on the upstream side of the pump chamber and the liquid can pass through at the first flow path in accordance with the speed of change of the volume of the pump chamber, in a case where the pump is driven for a suction operation that increases the volume of the pump chamber.
A liquid supplying device comprising:
- a liquid supplying flow path that supplies a liquid from an upstream side as a liquid supplying source side toward a downstream side on which the liquid is consumed;
- a pump that is driven for changing the volume of a pump chamber that is a part of the liquid supplying flow path;
- and
- a flow resistance changing unit that changes flow path resistance of the liquid supplying flow path on the upstream side of the pump chamber in accordance with the speed of change of the volume of the pump chamber in a case where the pump is driven for a suction operation that increases the volume of the pump chamber.
Dependencies are inferred from the claim text.