LIQUID DELIVERY SYSTEM, LIQUID CONTAINER, AND HEAD CARTRIDGE

摘要

A liquid supplying system using a negative pressure producing member accommodating chamber including a liquid supply portion for supplying liquid to outside, an air vent for fluid communication with ambience and a negative pressure producing member accommodating chamber for accommodating a negative pressure producing member for retaining the liquid therein, and using a liquid accommodating container which is detachably mountable to said negative pressure producing member accommodating chamber and which defines a substantially hermetically sealed space except for fluid communication with said negative pressure producing member accommodating chamber, the improvement residing in: an air introducing groove, provided at a connecting portion relative to said negative pressure producing member accommodating container in said liquid accommodating container, for gas-liquid exchange for permitting introduction of the gas into the liquid containing portion and discharge of the liquid.