Printhead chip incorporating electro-magnetically operable...

Details Printhead chip incorporating electro-magnetically operable... Printhead chip incorporating electro-magnetically operable...

Filed on

2006-08-29

Date issued

2006-08-29

Examiner

Do, An H. (Department: 2853)

Patent Class

Incremental printing of symbolic information

SubClass

Ink jet

SubSubClass

Ejector mechanism

Type

Reexamination Certificate

Status

active

Patent number

07097285

Description

ABSTRACT:
A printhead chip includes a substrate that incorporates drive circuitry. Nozzle chamber structures define nozzle chambers, ink inlets in fluid communication with the nozzle chambers and ink ejection ports in fluid communication with respective nozzle chambers. Ink ejecting members are positioned in respective nozzle chambers. The ink ejecting members are reciprocally displaceable with respect to the substrate to eject ink from the ink ejection ports and are responsive to a magnetic field of cyclically reversing polarity to be reciprocally displaced.

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