Supply device and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsKoki Hirata, Keigo Sugai
Life of this patent
Estimating the term…
Abstract
A supply device that supplies a liquid to a liquid ejecting head, includes one or more tanks that house the liquid; a liquid flow path coupled to the one or more tanks and the liquid ejecting head; and a pressure-adjusting portion that adjusts a pressure in the one or more tanks. The one or more tanks are provided between the pressure-adjusting portion and the liquid flow path. The pressure-adjusting portion includes a communication path that communicates with the one or more tanks, a pressure chamber provided with a diaphragm and coupled to the communication path, and an urging portion that urges the diaphragm in a direction in which the pressure chamber expands.
Claims6
A supply device that supplies a liquid to a liquid ejecting head, the supply device comprising:
- one or more tanks that house the liquid;
- a liquid flow path coupled to the one or more tanks and the liquid ejecting head;
- and
- a pressure-adjusting portion that adjusts a pressure in the one or more tanks, the pressure-adjusting portion being a self-sealing valve, wherein
- the one or more tanks are provided between the pressure-adjusting portion and the liquid flow path,
- the pressure-adjusting portion includes a communication path that communicates with the one or more tanks, a pressure chamber provided with a diaphragm and coupled to the communication path, and an urging portion that urges the diaphragm in a direction in which the pressure chamber expands, and
- the inside of the communication path and the self-sealing valve contains only air when pressure is adjusted such that no liquid enters the communication path or the self-sealing valve.
Dependencies are inferred from the claim text.