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US 7,465,030 B2Granted
Nozzle arrangement with a magnetic field generator
AssigneeSilverbrook Research Pty Ltd
InventorKia Silverbrook
Life of this patent
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Abstract
The invention provides for a nozzle arrangement for a printhead. The arrangement includes a wafer substrate defining a nozzle chamber, and a passivation layer formed on the substrate to define a roof wall and ink ejection port of the chamber. The arrangement also includes a paddle arranged in the chamber configured to operatively eject ink from the chamber via the ejection port, as well as a magnetic field generator fast with the wafer substrate, the generator configured to actuate the paddle to eject the ink.
Claims8
A nozzle arrangement for a printhead, the arrangement comprising:
- a wafer substrate defining a nozzle chamber;
- a passivation layer formed on the substrate to define a roof wall and ink ejection port of the chamber;
- a magnetic paddle arranged in the chamber configured to operatively eject ink from the chamber via the ejection port;
- and
- a magnetic field generator fast with the wafer substrate, the generator configured to actuate the paddle to eject the ink.
2 more elements
Dependencies are inferred from the claim text.