Patent ID: 7699450

Claim:
An ink supplying container configured to store ink supplied from an ink storing tank and supply the ink to a recording head having nozzles, the ink supplying container comprising: an ink container including a flexible member at a side of the ink container; and a volume control unit including a stopping unit having a shape conforming to a shape of the flexible member at a time when an internal pressure of the ink container is made a negative pressure, and a moving unit which moves the stopping unit forward or backward for the flexible member of the ink container, wherein: the volume control unit is disposed to face the flexible member of the ink container, restrains the flexible member from expanding when the internal pressure of the ink container is made a positive pressure, and does not restrain the flexible member from expanding when the internal pressure of the ink container is made the negative pressure, where the negative pressure is lower than atmospheric pressure and the positive pressure is higher than the atmospheric pressure.