Printhead and method for controlling temperatures in drop...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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C347S061000

Reexamination Certificate

active

07824017

ABSTRACT:
An apparatus and method for controlling temperature profiles in ejection mechanisms is provided. A heater includes a first resistor segment having an electrical resistivity, a second resistor segment; and a coupling segment positioned between the first resistor segment and the second resistor segment. The coupling segment has an electrical resistivity, wherein the ratio of the resistivity of the coupling segment to the resistivity of the first resistor segment is substantially zero. Alternatively, the first resistor segment has an electrical conductivity and the coupling segment has an electrical conductivity, wherein the electrical conductivity of the coupling segment is greater than the electrical conductivity of the first resistor segment.

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