Liquid ejection head and image forming apparatus

Details Liquid ejection head and image forming apparatus Liquid ejection head and image forming apparatus

2011-01-25

2011-01-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S047000

Reexamination Certificate

active

07874657

ABSTRACT:
The liquid ejection head comprises: a nozzle from which liquid is ejected; a pressure chamber which accommodates the liquid to be ejected from the nozzle; a pressurizing device which deforms to pressurize the liquid in the pressure chamber to eject the liquid from the nozzle; and a nozzle flow channel through which the pressurized liquid flows from the pressure chamber to the nozzle, the nozzle flow channel having at least a portion in which forces acting toward an axis of the nozzle flow channel onto the liquid flowing inside the nozzle flow channel are not uniform within a cross-section perpendicular to the axis.

REFERENCES:
patent: 5646662 (1997-07-01), Kitahara
patent: 7399060 (2008-07-01), Tsuchii
patent: 2004/0155915 (2004-08-01), Kitami et al.
patent: 2004-202707 (2004-07-01), None
patent: 2004-262237 (2004-09-01), None
patent: 2005-95746 (2005-04-01), None

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