Liquid ejection apparatus and control method for liquid ejection apparatus

Abstract

The liquid ejection apparatus includes an ejecting unit configured to eject liquid onto a medium to perform printing on the medium, a supply unit configured to supply the liquid to the ejecting unit, and a control unit, wherein the supply unit includes a mounting unit to and from which a storage unit configured to store the liquid is attachable and detachable, a supply flow path configured to couple the mounting unit and the ejecting unit, a branching flow path configured to branch off from the supply flow path at a branching position and to merge with the supply flow path at a merging position downstream of the branching position, and a pump configured to cause the liquid to flow from the merging position toward the branching position in the branching flow path, and the control unit performs a circulation operation that circulates the liquid in the supply flow path and the branching flow path, and is configured to perform an operation other than an operation of performing printing by ejecting the liquid from the ejecting unit and an operation of attaching and detaching the storage unit to and from the mounting unit as a parallel operation that is performed in parallel with the circulation operation.