Patent ID: 7703897

Claim:
A liquid ejection apparatus for use with a liquid, the liquid ejection apparatus comprising: an accommodation portion for accommodating a liquid containing member; a connected part to which the liquid containing member is connected, the connected part being arranged in the accommodation portion; a valve device, arranged on the connected part, for opening and closing a valve including a movable valve member; an operation member movable toward and away from the valve, the operation member moving the valve member with magnetic force when moving toward or away from the valve to open or close the valve; a first power transmission mechanism for transmitting power from a rotation drive source; a second power transmission mechanism for restricting a movement of the operation member in a direction for opening the valve when the liquid containing member is disconnected from the connected part; and a conversion mechanism for converting each of the power transmitted from the first power transmission mechanism and the power transmitted from the second power transmission mechanism to movement of the operation member in the movement direction of the operation member, wherein: the operation member is formed to move in a movement direction of the valve member; and when the power from the rotation drive source is transmitted to the operation member via the first power transmission mechanism in a state in which the restriction of the movement of the operation member in the direction for opening the valve is eliminated by connection of the liquid containing member to the connected part, the operation member moves in the direction for opening the valve and thereby opens the valve.