Printhead chip that incorporates nozzle chamber reduction...

Details Printhead chip that incorporates nozzle chamber reduction... Printhead chip that incorporates nozzle chamber reduction...

2007-03-13

2007-03-13

Do, An H. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

11026136

ABSTRACT:
A printhead chip includes a substrate that incorporates a drive circuitry layer and defines a plurality of nozzle chambers and respective ink supply channels in fluid communication with the nozzle chambers. A plurality of nozzles is positioned on the substrate to be in fluid communication with respective nozzle chambers. A plurality of actuators is connected to the drive circuitry layer and is reciprocally displaceable with respect to the substrate on receipt of an electrical signal from the drive circuitry layer. At least one actuator is associated with each respective nozzle chamber. The actuators are positioned so that reciprocal displacement of each actuator results in reduction and subsequent enlargement of each respective nozzle chamber to eject ink drops from the respective nozzles.

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