Nozzle arrangement for an inkjet printing device with volumetric ink ejection
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United States of America Patent
Stats
-
Oct 23, 2007
Grant Date -
Jan 11, 2007
app pub date -
Sep 14, 2006
filing date -
Jun 9, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nozzle arrangement for an inkjet printhead, the nozzle arrangement including a substrate that incorporates drive circuitry and defines an ink chamber and an ink supply channel in fluid communication with the ink channel. A cover is fast with the substrate to cover the ink chamber. The cover defines an ink ejection port bounded by a nozzle rim through which ink can be ejected. The cover includes a plurality of actuators extending radially with respect to the rim. Each actuator has a free end located proximal to the rim, each actuator being configured so that, on receipt of a drive signal from the drive circuitry layer, its free end can move into the ink chamber to reduce a volume of the ink chamber and thereby eject ink within the ink chamber from the ink ejection port.
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