Seiko Epson Corporation

Nanami Haga

Yuta Komatsu

Hiromichi Takanashi

Kenji Tsukada

Akihiko Maruyama

Tomohiro Kawasaki

A liquid ejection apparatus includes a first storage portion capable of storing a liquid supplied from a liquid container, a first open-to-atmosphere channel configured to open the inside of the first storage portion to the atmosphere, a second storage portion capable of storing the liquid supplied from the first storage portion, and a second open-to-atmosphere channel configured to open the inside of the second storage portion to the atmosphere. The liquid ejection apparatus is configured to select either a normal mode or a transport mode. The normal mode is a mode in which the power is switched off with the first open-to-atmosphere channel open and the second open-to-atmosphere channel open. The transport mode is a mode in which the power is switched off with the first open-to-atmosphere channel open and the second open-to-atmosphere channel closed.

Liquid ejection apparatus

A tank unit includes a first inlet portion via which liquid supplied from a liquid container flows in, a first chamber configured to store the liquid that flows in via the first inlet portion, a first opening-to-atmosphere portion configured to open an inside of the first chamber to atmosphere, an outlet flow passage to which one end is connected to the first chamber, a second chamber connected to the other end of the outlet flow passage and configured to store the liquid supplied from the first chamber, a second opening-to-atmosphere portion configured to open an inside of the second chamber to atmosphere, and an on-off valve configured to open and close the outlet flow passage. The first inlet portion is connected to the first chamber via an opening portion at some midpoint in a vertical direction of the first chamber.

Tank unit and liquid ejecting apparatus

A liquid discharge apparatus including: a first storage section that stores a liquid; a second storage section that communicates with the first storage section; a supply channel that supplies the liquid from the second storage section to a liquid ejecting head; a collection channel that collects the liquid from the liquid ejecting head to the first storage section; the pressurization section that pressurizes the inside of the second storage section; and a control section, in which the first storage section, the supply channel, the liquid ejecting head, the collection channel, the second storage section, and the communication path form a circulation route, and the control section is configured to execute discharge circulation in which circulation of the liquid is performed while discharging the liquid from the nozzle, and non-discharge circulation in which circulation of the liquid is performed without discharging the liquid from the nozzle.

Growing community of inventors

Shiojiri, Japan

Nanami Haga