Printhead with nozzles having individual supply passages...

Details Printhead with nozzles having individual supply passages... Printhead with nozzles having individual supply passages...

2011-06-28

2011-06-28

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S047000

Reexamination Certificate

active

07967418

ABSTRACT:
An inkjet printhead has a wafer substrate with a droplet ejection side and a liquid supply side opposite the droplet ejection side. Drive circuitry layers are formed on the droplet ejection side of the wafer substrate. An array of nozzles is formed on the droplet ejection side of the wafer substrate, each nozzle having a drop ejection actuator and an associated drop ejection aperture for ejecting drops of liquid. Ducting extends from the liquid supply side into the wafer substrate and terminating before reaching the droplet ejection side. Liquid inlets establish fluid communication between the ducting and the array of nozzles.

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