| 摘要 |
An ink cartridge has a cartridge body to which an ink supply pipe extending from an inkjet printer is detachably attached, and which has an ink storing space for storing an ink to be supplied to the inkjet printer via the ink supply pipe, and a valve mechanism that opens and closes both an ink path which, when the ink supply pipe is attached to the cartridge body, communicates with the ink supply pipe, and an atmospheric air path through which atmospheric air is introduced into the ink storing space, the valve mechanism including a valve member having a first opening-closing portion which is relatively movable with respect to the cartridge body, and which opens and closes the ink path and a second opening-closing portion which is relatively movable with respect to the cartridge body, and which opens and closes the atmospheric air path.
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