| 摘要 |
An ink cartridge includes an ink storage chamber and an ink supply chamber, and the ink supply chamber includes a check valve configured to selectively open and close a communication hole between the ink storage chamber and the ink supply chamber depending on a pressure differential between a first pressure in the ink storage chamber and a second pressure in the ink supply chamber. When the ink storage chamber is filled with ink, the first pressure is lower than an atmospheric pressure, and the second pressure is higher than the first pressure such that the check valve closes the communicating hole.
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