Printhead chip that incorporates micro-mechanical lever...

Details Printhead chip that incorporates micro-mechanical lever... Printhead chip that incorporates micro-mechanical lever...

2006-11-07

2006-11-07

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S044000, C347S049000

Reexamination Certificate

active

07131715

ABSTRACT:
A printhead chip includes a substrate that incorporates drive circuitry and defines a plurality of ink inlet channels. Nozzle chamber structures are positioned on the substrate and define nozzle chambers in fluid communication with respective ink inlet channels and ink ejection ports in fluid communication with respective nozzle chambers. Elongate micro-electromechanical actuators are fast with the substrate at first ends to be connected to the drive circuitry so that second ends are displaceable reciprocally with respect to the substrate on receipt of electrical signals from the drive circuitry. Ink ejection members are positioned in respective nozzle chambers and are displaceable with respect to the substrate to eject ink from associated ink ejection ports. Micro-mechanical lever mechanisms are interposed between respective actuators and ink displacement members so that displacement of the actuators is transmitted to the ink displacement members.

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