| 摘要 |
PURPOSE: An ink cartridge and an ink supply system for an ink jet type printing apparatus is provided which is capable of closing an ink supply channel assuredly, sufficiently when it is not mounted on the printing apparatus and capable of opening the ink supply channel to allow ink to smoothly flow to a print head when it is mounted on the printing apparatus. CONSTITUTION: An ink cartridge for a printing apparatus providing ink to a print head through a tapered ink supply needle (104) and removably attached to the print head. The ink cartridge comprises an ink chamber for containing ink, an ink supply port, a packing member (8) and a valve device (10, 12). The ink supply port supplies ink from the ink chamber to the print head of the printing apparatus, the ink supply port comprising an external opening (14). The packing member (8) is provided in the ink supply port and forms an ink channel for allowing a flow of ink. The packing member (8) seals the ink supply needle (104) of the printing apparatus by fitting therewith. The valve device (10, 12) is contained in the ink supply port and elastically abuts against the packing member (8). The valve device selectively opens and closes the ink channel in conjunction with the ink supply needle (104). |
