Patent ID: 9694595
Date: 2017-07-04
CPC Classifications: B41J

Claim:
1. A liquid circulation device, comprising: a liquid chamber configured to be connected with a liquid discharge section that discharges liquid and be capable of holding the liquid; a circulation section configured to circulate the liquid in a flow path containing the liquid chamber and the liquid discharge section; a liquid replenishment section configured to replenish the liquid to the liquid chamber; a gas control section configured to be capable of pressurizing or decompressing the liquid chamber; and a control section configured to replenish liquid through the liquid replenishment section in a case in which pressure of the liquid discharge section is in a predetermined reference range and lower than a predetermined threshold value, pressurize the liquid discharge section by pressurizing the liquid chamber through the gas control section in a case in which the pressure is lower than the reference range and decompress the liquid discharge section by decompressing the liquid chamber through the gas control section in a case in which the pressure is higher than the reference range.