Printhead having relatively dimensioned ejection ports and arms

Details Printhead having relatively dimensioned ejection ports and arms Printhead having relatively dimensioned ejection ports and arms

2011-02-08

2011-10-04

Do, An (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

08029102

ABSTRACT:
A printhead is provided having chambers for fluid, ejection ports defined in the chambers, and ejection arms positioned in the chambers, each arm having a displacement area which is displaced against fluid in the respective chamber to eject the fluid from the respective ejection port. Each displacement area is greater than half an area of the respective ejection port and less than twice the area of that ejection port.

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