Printhead chip that incorporates micro-mechanical...

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

2006-05-09

2006-05-09

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

07040738

ABSTRACT:
A printhead chip includes a substrate that incorporates a drive circuitry layer and defines a plurality of ink inlet channels. A plurality of nozzle chamber structures is positioned on the substrate. Each nozzle chamber structure defines a nozzle chamber in fluid communication with a respective ink inlet channel and an ink ejection port in fluid communication with the nozzle chamber. A plurality of ink ejecting members is positioned in respective nozzle chambers. The ink ejecting members are displaceable towards and away from respective ink ejection ports to eject drops of ink from said ports. A plurality of actuators is connected to the drive circuitry. Each actuator includes a force transmitting portion that is substantially linearly displaceable upon receipt of a signal from the drive circuitry layer. A plurality of translating mechanisms is interposed between respective force transmitting portions and associated ink ejecting members such that displacement of the force transmitting portions results in said displacement of the respective ink ejecting members.

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