| 摘要 |
<p>An ink jet recording device equipped with a sub-tank positioned between a main tank and an ink jet head is configured in such a manner that a tube pump is used for a pressure-adjusting means for adjusting the air pressure inside the sub-tank, and a valve for opening and closing a flow path is not used; and is further configured such that the inside of the sub-tank is partitioned by porous members into three spaces, namely, an ink inflow part, an ink outflow part, and an outside air communication part, and ink or gas invariably moves through the porous members. Thus, an increase in the size of a recording device equipped with a sub-tank between a main tank and an ink jet head is minimized, and bubbles generated inside the ink jet head can be removed.</p> |
