Patent ID: 6550900
Filing Date: 2003-04-22
Classification: B41J

Abstract:
An ink container comprising:an ink reservoir for storing ink, the ink reservoir having a gap on a top portion; an ink outlet set in a bottom portion of the ink reservoir for providing ink to the outside of within the ink reservoir; an elastic deformation device set within the ink reservoir, the elastic deformation device being connected to the gap of the ink reservoir to accept external air into the elastic deformation device, the elastic deformation device being capable of adjusting pressure within the ink reservoir by producing deformation according to a magnitude of a pressure within the ink reservoir or elasticity of the elastic deformation device; and an ink adjusting room set on a top portion of the ink reservoir; wherein when the pressure within the ink reservoir is lower than a pressure of external air, the external air flowing into the elastic deformation device of the ink container causes the elastic deformation device to expand, and when the pressure within the ink reservoir is higher than the pressure of the external air, ink within the ink reservoir is capable of flowing into the ink adjusting room, and the elastic deformation device shrinks to have an outwardly overlapping wall with a folding shape in order to balance the pressure of the external air with the pressure of the ink reservoir.