Seiko Epson Corporation

Yuki Shiohara

Toshio Kumagai

Hitotoshi Kimura

Satoru Kobayashi

Yuichi Urabe

Toshio Nakata

Seiko Hamamoto

Kazushi Arafuka

Munechika Otsuru

A liquid circulation mechanism includes a supply flow path making a liquid supply source and a liquid discharging head communicate with each other and a collection flow path making the liquid discharging head and a connection portion of the supply flow path communicate with each other, in which a branch portion, a plurality of flow paths branched at the branch portion, and a merging portion, in which the plurality of flow paths are merged, are provided in at least one of the supply flow path and the collection flow path. Pressure adjustment portions, which are provided in the plurality of flow paths and open the flow paths when a pressure on the liquid discharging head side is equal to a predetermined pressure, have different the predetermined pressures for opening the flow paths in the plurality of flow paths.

Liquid circulation mechanism, liquid circulation device, and liquid discharging apparatus

A damper unit includes a damper chamber which has a wall partially composed of a flexible membrane with a rubber elasticity and which is configured to store a liquid; a gas chamber partitioned from the damper chamber by the flexible membrane; a communication portion provided for the gas chamber so that the gas chamber is in communication with an outside of the damper unit; and a one-way valve provided in the communication portion to allow a gas to flow into the gas chamber from the outside of the damper unit and to restrict a gas to flow from the gas chamber to an outside thereof.

Damper unit and liquid ejecting apparatus

A liquid ejecting apparatus includes: a liquid supply path coupled to a liquid ejection portion to supply a liquid thereto; a liquid discharge path coupled to the liquid ejection portion to discharge the liquid to be supplied thereto; an upstream damper portion which is provided as a part of the liquid supply path and which includes an upstream damper chamber having a wall partially composed of a flexible membrane with a rubber elasticity; and a downstream damper portion which is provided as at least one of a part of the liquid supply path between the upstream damper portion and the liquid ejection portion and a part of the liquid discharge path and which has a flexible wall composed of a resin film.

Liquid ejecting apparatus

Growing community of inventors

Matsumoto, Japan

Yuki Shiohara