Ink jet printhead with inner and outer heating loops

Details Ink jet printhead with inner and outer heating loops Ink jet printhead with inner and outer heating loops

2011-04-12

2011-04-12

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S062000

Reexamination Certificate

active

07922294

ABSTRACT:
An ink jet printhead comprising: a substrate; a plurality of chambers supported by the substrate for receiving therewithin bubble forming liquid; a nozzle aperture formed in a surface of each chamber; a beam suspended within each chamber, the beam comprising at least one respective heater element. The at least one respective heater element heats at least part of the bubble forming liquid to a temperature above its boiling point to form a gas bubble therein, thereby causing ejection of a drop of the bubble forming liquid through the nozzle aperture corresponding to the heater element.

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