Liquid container for ink jet recording apparatus

摘要

A liquid container includes a negative pressure producing member accommodating chamber accommodating a negative pressure producing member for absorbing and retaining the liquid, the negative pressure producing member accommodating chamber having a supply port for supplying the liquid to liquid an ejection recording head and an air vent for fluid communication with ambient air; a liquid containing chamber for containing the liquid, the liquid containing chamber being in fluid communication with the negative pressure producing member accommodating chamber through the communicating portion and being substantially sealed except for the communicating portion; and a partition wall for partitioning the liquid container into the negative pressure producing member accommodating chamber and the liquid containing chamber except for the communicating portion; wherein the negative pressure producing member is provided with a recess at a position corresponding to the communicating portion; wherein a ceiling portion of a space provided by the recess functions as a gas introduction surface which are substantially horizontal when the liquid container takes a position in use.