Patent ID: 8801126
Filing Date: 2014-08-12
Classification: B41J

Abstract:
1. A liquid detection system which detects the presence or absence of liquid in a liquid container which is detachably mounted with respect to a liquid consuming apparatus, wherein the liquid container includes, a liquid receiving unit which can receive liquid which is consumed in the liquid consuming apparatus; a liquid chamber to which the liquid flows in from the liquid receiving unit, and has a deforming portion which can deform at a part thereof; a first urging member which causes an urging force to be applied to the deforming portion, which is opposite to the deformation of the deforming portion due to a negative change in pressure of the liquid chamber which accompanies a supply of the liquid to the liquid consuming apparatus; and a lever member which is rotatably provided about a fulcrum, increases a displacement of the deforming portion which comes in contact with a first contact point at a predetermined lever ratio, and transmits the displacement to a second contact point, and wherein the liquid consuming apparatus includes, a transmitting member which comes in contact with the second contact point of the lever member, and transmits a displacement of the second contact point to the inside of the liquid consuming apparatus; a sensor which detects the presence or absence of the liquid in the liquid container by detecting the displacement which is transmitted using the transmitting member; and a second urging member which urges the transmitting member in the direction where the transmitting member comes in contact with the lever member, and presses the lever member against the deforming portion using the urging, when the liquid container is installed in the liquid consuming apparatus.