BACKGROUND OF THE INVENTION

Field of the Invention

The present disclosure relates to a liquid supply apparatus that supplies liquid to a liquid ejecting head, a liquid storage tank used in the liquid supply apparatus, and a liquid ejecting apparatus including those components.

Description of the Related Art

As a liquid ejecting apparatus including a liquid ejecting head that ejects liquid, there is known one that includes a liquid supply apparatus in which a cartridge storing liquid is connected to a tank in communication with the liquid ejecting head, and the cartridge supplies the liquid to the tank.

Examples of liquid ejecting apparatuses including such a liquid supply apparatus include an inkjet printing apparatus that performs printing by ejecting liquid (ink), disclosed in Japanese Patent Laid-Open No. 2019-25818. The inkjet printing apparatus disclosed in this document has a configuration in which in use, a liquid storage chamber (ink storage chamber) of the tank and a liquid storage chamber (ink storage chamber) of the cartridge are separately open to the atmosphere.

SUMMARY OF THE INVENTION

The present disclosure relates to a liquid supply apparatus including: a liquid storage tank in communication with a liquid ejecting head that ejects liquid; and a cartridge that stores the liquid and is detachably provided to the liquid storage tank, in which the liquid storage tank includes an atmosphere communication portion in communication with the atmosphere, a first connecting portion that, in a state where the cartridge is attached to the liquid storage tank, enables the cartridge to be in liquid communication with the liquid storage tank, and a second connecting portion that, in the state where the cartridge is attached to the liquid storage tank, is connected to the cartridge so as to be liquid-tight with the cartridge and enables the cartridge to be in gaseous communication with the atmosphere communication portion.

Further features of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings.

