Printhead with redundant nozzle chamber inlets for...

Details Printhead with redundant nozzle chamber inlets for... Printhead with redundant nozzle chamber inlets for...

2007-11-29

2010-11-30

Stephens, Juanita D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S054000, C347S065000

Reexamination Certificate

active

07841697

ABSTRACT:
A printhead comprising a plurality of inkjet nozzle assemblies is provided. Each nozzle assembly comprises a nozzle chamber formed on a substrate. The nozzle chamber comprises a roof spaced apart from the substrate and sidewalls extending between the roof and the substrate. The nozzle chamber has an ink ejection opening defined in the roof, a first ink inlet defined in one of the sidewalls, and a second ink inlet defined in a floor of the nozzle chamber. Each ink inlet is in fluid communication with a common ink reservoir. The nozzle assembly further comprises an actuator for ejection of ink through the ink ejection opening.

REFERENCES:
patent: 5519423 (1996-05-01), Moritz et al.
patent: 6543879 (2003-04-01), Feinn et al.
patent: 2007/0081032 (2007-04-01), Silverbrook
patent: 2007/0081044 (2007-04-01), Silverbrook
patent: 1336486 (2003-08-01), None
patent: 1491340 (2004-12-01), None

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