Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-11-18
2009-11-03
Stephens, Juanita D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S047000
Reexamination Certificate
active
07611226
ABSTRACT:
An ink jet printhead that has a nozzle aperture3that defines a planar opening having two planes of symmetry, both of which extend perpendicular to the plane of the opening. The printhead also having a chamber configured to receive a supply of printing fluid and a heater element disposed in the chamber to generate a gas bubble in the printing fluid that ejects a drop of the printing fluid through the nozzle aperture. The heater element is a suspended beam that has two planes of symmetry and at least one of the heater element planes of symmetry is common to one of the nozzle aperture plane of symmetry.
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Silverbrook Research Pty Ltd
Stephens Juanita D
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