| 摘要 |
<p>An improved print head construction for a continuous ink jet printing apparatus includes: walls (9, 11, 12) that enclose the orifice plate (25), charge electrodes (26) and catcher (27). A removable bottom wall (12) portion defines an egress slot (13) for passage of printing drops to the print media (M) and a layer (14) of porous material surrounds the slot (13) and extends over the exterior surface of the bottom wall portion (12).</p> |
