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US 2010/0134567 A1Published application
Inkjet printhead with heater elements having parallel current paths
AssigneeSilverbrook Research Pty Ltd
InventorsMatthew Taylor Worsman, Mehdi Azimi, Kia Silverbrook
Life of this patent
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Abstract
An inkjet printhead having an array of ink chambers is disclosed. Each ink chamber has a nozzle and a heater element for generating vapour bubbles to eject ink through the nozzle. The heater element has multiple current paths connected in parallel. Each current path has at least one portion with a reduced cross-section relative to the remainder of the current path. A cross bracing structure is also provided for connecting intermediate portions of the current paths.
Claims11
An inkjet printhead comprising an array of ink chambers, each ink chamber having:
- a nozzle;
- and
- a heater element for generating vapour bubbles to eject ink through the nozzle, the heater element having a plurality of current paths connected in parallel, each current path having at least one portion having a reduced cross-section relative to the remainder of the current path, and a cross bracing structure for connecting intermediate portions of the current paths.
Dependencies are inferred from the claim text.