Patent ID: 7883164
Filing Date: 2011-02-08
Classification: B41J

Abstract:
1. A liquid storing device comprising: a storage unit that stores a liquid to be consumed; a rotation member that is installed to the inside of the storage unit and is rotated around a rotation axis; a blade member that is installed to the rotation member so as to be movable in the axis direction of the rotation axis with respect to the rotation member and has specific gravity smaller than that of the liquid; a detection member that detects the blade member in a case where the blade member is located at a detection position in the vertical direction; and a control unit that determines the amount of the liquid inside the storage unit is equal to or smaller than a predetermined amount at a time when the blade member located at the liquid surface is detected by the detection member when the rotation member is stopped, wherein, in a case where the rotation member rotates in one direction, the blade member agitates the liquid while moving toward the lower side of a liquid surface of the liquid in the vertical direction along the axis direction in accordance with rotation of the rotation member, and wherein, when the rotation of the rotation member in the one direction stops, the blade member floats toward the liquid surface due to buoyancy of the liquid.