| 摘要 |
<p>A porous material (12) is used to fill a portion of an ink supply path (3, 10) extending from a needle tip (9) to a filter (4). Ink is conveyed across the porous material (12) to the filter (4) and wets the entire top surface of the filter (4). The porous material (12) reduces the substantial cross sectional area of the bubbles that pass therethrough so that the bubbles are then permitted to pass through the filter (4). Because the bubbles pass through the filter (4), the stagnation of bubbles on a filter (4) at the end of an ink supply needle (5) is prevented. <IMAGE></p> |
