Patent ID: 9724929
Date: 2017-08-08
CPC Classifications: B41J

Claim:
1. A liquid container mountable to an apparatus in which an optical sensor is installed, the liquid container comprising: a reservoir storing a liquid; a detection chamber which communicates with the reservoir and which is located at a position detectable by the optical sensor in a state where the liquid container is mounted in the apparatus; and a displacement member configured to displace to a first direction in the reservoir and the detection chamber according to an amount of liquid stored in the reservoir, wherein the displacement member includes a light shielding part which moves, according to the displacement, within the detection chamber between a position where light of the optical sensor is shielded and a position where the light of the optical sensor is not shielded and a regulating member for regulating movement of the displacement member in a second direction that crosses the first direction, an inner wall of the detection chamber has a first area that faces the light shielding part and at least of a portion of that is formed of a material transmitting the light of the optical sensor and a second area that faces the regulating member in the second direction, and the first area and the second area are connected via a ridgeline having an inter-surface angle larger than 180 degrees.