A method of supplying liquid into a liquid container, which includes a first chamber, provided with a liquid supply portion for supplying liquid out, to a liquid ejection head and an air vent for fluid communication with ambient air, for accommodating therein a negative pressure producing member; a second...http://www.google.com.au/patents/US6058984?utm_source=gb-gplus-sharePatent US6058984 - Method for filling liquid into liquid container with liquid chamber, and liquid filling apparatus
