Ink jet printhead with circular cross section chamber

Details Ink jet printhead with circular cross section chamber Ink jet printhead with circular cross section chamber

2007-10-30

2007-10-30

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

10728790

ABSTRACT:
A thermal ink jet printhead with an array of nozzles3, each nozzle having heater elements10disposed in a bubble forming chamber7. The bubble forming chambers7having circular cross sections. For example, the chambers7are cylindrical, spherical, barrel-shaped or truncated cone shaped. The circular cross sections have enhanced structural strength that better withstands the pressure transients in the bubble forming liquid during droplet ejection.

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