| 摘要 |
Methods for filling an ink cartridges having a cartridge body including an ink tank, an ink inflow passage that communicates with the ink tank at a first end through a first opening and that communicates with an exterior of the ink cartridge at a second end through a second opening, and a sealing member that is positioned in the ink inflow passage, are provided. An ink cartridge includes a cartridge body, an ink tank formed in the cartridge body for storing ink, and an ink inflow passage formed in the cartridge body for filling the cartridge. The ink inflow passage communicates with the ink tank at a first end through a first opening and communicates with an exterior of the cartridge at a second end through a second opening, the ink inflow passage includes a first region adjacent to the first opening and a second region adjacent to the second opening, and the first region has a smaller diameter than the second region.
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