| 摘要 |
<p>A waste ink tank (1) for containing waste ink in an ink jet recording apparatus comprising an opening (22) provided in the waste ink tank (1), for introducing the waste ink into the ink tank (1), an ink absorbing member (16) disposed in the waste ink tank (1), and a volume expanding member (34) arranged in contact with a predetermined position of the ink absorbing member (16), the volume expanding member (34) expanding due to absorption of ink and having a coefficient of volumetric expansion higher than that of the ink absorbing member (16).</p> |
