Patent ID: 7934821
Filing Date: 2011-05-03
Classification: B41J

Abstract:
1. An ink cartridge, comprising: an ink storing portion configured to store ink therein, the ink storing portion comprising: the particular wall defining at least a portion of the ink storing portion, wherein the particular wall has the particular passage formed therethrough; a pipe extending from an interior of the ink storing portion to an exterior of the ink storing portion via the particular passage, wherein the pipe has an inner passage formed therethrough, and the inner passage is configured to transmit ink from the interior of the ink storing portion to the exterior of the ink storing portion; a valve body comprising a moving body positioned within the valve chamber, wherein the pipe extends from the moving body, and the valve body is configured to move between a first position in which the moving body covers the particular passage and a second position in which the moving body is separated from the particular passage; and a biasing member configured to apply a biasing force to the moving body toward the particular passage, wherein when the valve body is in the first position, the particular passage is positioned between the further passage and the valve chamber, and when the valve body is in the second position, the further passage is positioned within the valve chamber.