Patent ID: 8322819
Filing Date: 2012-12-04
Classification: B41J

Abstract:
1. A liquid ejector comprising: a liquid ejection head which ejects a liquid through a nozzle; a discharge path used for discharging the liquid from the liquid ejection head; a cap which is connected to an upstream end of the discharge path and covers the nozzle; a pump which is provided in the middle of the discharge path, the pump sucking the liquid from the liquid ejection head through the cap and the nozzle and conveying the liquid from the upstream end to a downstream end of the discharge path; a first tank which is provided downstream of the pump on the discharge path, communicates with the outside air, and temporarily stores the liquid in the discharge path; a second tank which is detachably attached to the liquid ejector and is connected to the downstream end of the discharge path when the second tank is attached to the liquid ejector; a first valve which switches a state of the first tank between open to the outside air and cut off from the outside air; a second valve which switches a state of the first tank between connection to the second tank and cut off from the second tank; and a control unit which controls the pump, the first valve, and the second valve so as to switch between: