Abstract: A liquid ejecting apparatus includes: a head that ejects a liquid from a nozzle; a mounting portion on which a liquid container in which the liquid is sealed is detachably mounted; a sub-tank in which the liquid supplied from the liquid container is stored; a connection channel connected to the sub-tank and the head; an opening and closing valve positioned in the connection channel; and a control portion, in which when the liquid container is replaced, the control portion closes the opening and closing valve.

Abstract: 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.

Abstract: 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.

Abstract: 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.