Inkjet printhead with suspended heater elements

Details Inkjet printhead with suspended heater elements Inkjet printhead with suspended heater elements

2007-11-06

2008-10-28

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S040000

Reexamination Certificate

active

07441876

ABSTRACT:
A printhead has a plurality of micro-electromechanical nozzle arrangements. Each nozzle arrangement includes a substrate, side walls and a nozzle plate which together define a chamber. The substrate defines a fluid inlet and the nozzle plate defines a nozzle. Each chamber has a heater element suspended therein. In use, when the chamber contains printing fluid, activation of the heater element produces a vapor bubble in the fluid. This, in turn, produces a pressure increase in the chamber which ejects a drop of printing fluid via the nozzle onto a printing medium.

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