| 摘要 |
<p>A method is disclosed for controlling liquid movement to and from a liquid ejection device (1) (such as an ink jet printing device). The device has a nozzle chamber (2), a liquid ejection aperture (4) in the nozzle chamber and a movable element (60) located within the chamber for displacing liquid through the ejection aperture. The method comprises displacing the movable element (60) so that it moves from a quiescent first position to a liquid ejecting second position with a first average velocity, then returning it from the second position to the first position with a second average velocity which is lower than the first average velocity.</p> |
