Liquid cartridge provided with deformable member, movable member, and urging member for detection of remaining amount of liquid

A liquid cartridge comprising:

• a casing including a front wall and a liquid chamber configured to store liquid therein, the liquid chamber being configured such that an internal pressure of the liquid chamber is reduced in accordance with outflow of liquid from the liquid chamber;
• a liquid supply portion disposed at the front wall and configured to allow liquid in the liquid chamber to flow out of the liquid chamber;
• a deformable member protruding from the casing in a cross direction that crosses a forward direction and a rearward direction and having an internal space that is in communication with the liquid chamber, the deformable member having such an elasticity that a dimension of the deformable member in the cross direction becomes smaller in accordance with the reduction in the internal pressure of the liquid chamber;
• a movable member including a detection portion configured to be detected from an exterior of the liquid cartridge and a contact portion configured to contact the deformable member, the movable member being supported to the casing and movable in the forward direction and the rearward direction relative to the casing, the contact portion being in contact with the deformable member and disposed at one of a position further forward relative to the deformable member and a position further rearward relative to the deformable member;
• and
• an urging member configured to urge the movable member to move the contact portion toward the deformable member.