| 摘要 |
An ink ejection arrangement for an inkjet printhead is provided. The arrangement comprises an ink chamber, a nozzle defined in a first wall of the ink chamber and an ink ejector positioned within an aperture defined in an opposite, second wall of the ink chamber. The ink chamber is arranged in fluid communication with an ink supply channel via the aperture so as to supply ink to the nozzle. The ink ejector incorporates a movable paddle which is operable to cause ejection of ink from the nozzle and resupply of ink to the ink chamber from the ink supply channel. The adjacent, peripheral regions of the second wall and the paddle are configured to define a bicuspid valve between the ink chamber and the ink supply channel.
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