Abstract: A pressure change accommodating liquid ink container is provided for installing onto the printhead of a liquid ink recording apparatus for supplying liquid ink to the printhead. The pressure change accommodating liquid ink container includes external walls, including a front wall and a top wall, defining a holding chamber for containing liquid ink; a pressure release hole formed through the top wall into the holding chamber; and a pressure compensator device mounted to the top wall over the pressure release hole and including an auxiliary chamber for accommodating a change in an internal pressure of the holding chamber when filled with liquid ink.