Patent ID: 9636921
Date: 2017-05-02
CPC Classifications: B41J

Claim:
1. A liquid ejection apparatus, comprising: a liquid chamber configured to hold liquid which is to be supplied to a liquid ejection section ejecting liquid; a circulation section configured to circulate the liquid between the liquid chamber and the liquid ejection section; a cartridge having liquid and located outside of the circulation section; a liquid replenishment section configured to transfer the liquid in the cartridge to the circulation section and directly replenish the liquid from the cartridge to the liquid chamber in the circulation section; a gas replenishment section configured to replenish gas to the liquid chamber; a pressure detection section configured to detect pressure of the liquid chamber; and a control section configured to adjust pressure of the liquid ejection section by replenishing the liquid to the liquid chamber with the liquid replenishment section and replenishing the gas to the liquid chamber with the gas replenishment section.