| 摘要 |
Disclosed herein is an ink jet recording apparatus which supplies a suitable amount of ink to a main ink tank for supplying ink to a recording head. The main ink tank placed over a movable carriage includes a first ink chamber which holds ink therein in a free state together with air. The main ink tank communicates with a sub-ink tank attached to its upper portion through a pipe. Ink in a sub-ink chamber of the sub-ink tank forms an interface with air by a surface tension at the pipe. When the sub-ink tank is scanned by the movable carriage in this condition, acceleration acts on the ink in the first ink chamber and the sub-ink chamber. As a result, the air in the sub-ink chamber 81 and the ink in the first ink chamber are interchanged with each other at the interface according to a change in pressure of the first ink chamber, whereby the ink is supplied from the sub-ink chamber to the first ink chamber.
|
