Patent ID: 8366251

Claim:
A method of filling a liquid into a liquid container designed to be attachable to and detachable from a liquid consuming device and to store the liquid, which is to be supplied to the liquid consuming device, providing a liquid container comprising: a first chamber arranged to store the liquid therein and positioned to define a downstream direction of fluid flow from the liquid container to a liquid consuming device; a second chamber located downstream of the first chamber and arranged to be in liquid communication with the first chamber and store the liquid therein; sensor unit located downstream of the second chamber and arranged to receive therein a sensor for detecting a consumption level or a remaining level of the liquid; a liquid feeder located downstream of the sensor unit and arranged to supply the liquid stored in the first chamber and in the second chamber to the liquid consuming device; an air open structure in fluid communication with the air outside the liquid container arranged to place the first chamber in fluid communication with the outside air via an air communication path; a bubble trap flow path located upstream of the sensor unit and downstream of the second chamber and designed to trap bubbles; and a bubble trap chamber located downstream of the bubble trap flow path and upstream of the sensor unit and designed to trap bubbles; the liquid filling method comprising: forming an inlet in an area other than a section adjoining to and directly communicating with the bubble trap flow path in a pathway of the liquid; injecting a liquid through the inlet; and sealing the inlet after the injection of the liquid.