| 摘要 |
<p>Disclosed is a backpressure ink catridge comprising a catridge body (1, 2) which has an ink storage chamber (7, 10), an ink supply port (8) and an air-guiding buffer chamber (4). The air-guiding buffer chamber (4) is in communication with the atmosphere via an air inlet (3), and the bottom of the air-guiding buffer chamber (4) is in communication with the ink storage chamber (7, 10) via an air-guiding passage (5). A hollow column (6) having an inner cavity (61) is provided on the bottom of the ink storage chamber (7, 10), with the top part of the inner cavity (61) being in communication with the ink storage chamber (7, 10) and the bottom of the inner cavity (61) being in communication with the air-guiding passage (5).</p> |
