Liquid ejection head and liquid ejection apparatus

Details Liquid ejection head and liquid ejection apparatus Liquid ejection head and liquid ejection apparatus

2005-01-14

2008-08-12

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S054000, C347S056000, C347S063000, C347S067000

Reexamination Certificate

active

07410247

ABSTRACT:
A liquid ejection head including at least one head chip including a plurality of heating elements on a surface of a substrate, a nozzle sheet having nozzles disposed on the respective heating elements, a barrier layer disposed between the head chip and the nozzle sheet, reservoirs disposed between the heating elements and the nozzle sheet, the reservoirs being defined by part of the barrier layer, a common flow path communicating with the reservoirs, and a liquid storage chamber disposed on at least one region of the surface of the substrate excluding a region on which the reservoirs are disposed, the liquid storage chamber being defined by part of the barrier layer and communicating with the common flow path and the reservoirs, the liquid storage chamber storing liquid such that part of the nozzle sheet is in contact with the liquid.

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Gary Siewell et al., The ThinkJet Orifice Plate: A Part With Many Functions:, Hewlett-Packard Journal May 1985, pp. 33-37.

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