Patent ID: 8235513

Claim:
A method of manufacturing a liquid container detachably mounted on a liquid consuming device, the liquid container comprising: a liquid containing chamber in which the liquid can be contained; a liquid supply hole connectable to the liquid consuming device; a liquid guide passage for guiding the liquid contained in the liquid containing chamber to the liquid supply hole; and an air introducing hole for introducing an air into the liquid containing chamber through an air communicating passage, wherein the liquid containing chamber includes at least three liquid containing chambers, and wherein the liquid containing chambers are mutually connected so as to have a descending connection where a pair of the liquid containing chambers are mutually connected so that a liquid flow in the liquid guide passage is a descending flow from above to below and an ascending connection where a pair of the liquid containing chambers are mutually connected so that the liquid flow in the liquid guide passage is an ascending flow from below to above, the method comprising: forming an injection port, which communicates with the liquid containing chamber and is different from the air introducing hole, in the air communicating passage; injecting a predetermined amount of liquid through the injection port; and sealing the injection port after injecting the liquid.