Liquid droplet jetting apparatus and ink-jet printer

Details Liquid droplet jetting apparatus and ink-jet printer Liquid droplet jetting apparatus and ink-jet printer

2006-11-01

2010-06-22

Nguyen, Thinh H (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

07740344

ABSTRACT:
An ink-jet head includes a plurality of pressure chambers arranged in a paper feeding direction, and two manifold channels extended along the paper feeding direction. The manifold channel includes a first area which communicates with the pressure chambers, and a second area which is connected to an end of the first area, on a side opposite to an ink inflow port, and communicates with a plurality of dummy nozzles. A width of the second area is more than a width of the first area, and an acoustic capacitance of the second area, per unit length in the paper feeding direction is higher than an acoustic capacitance of the first area, per unit length in the paper feeding direction. Accordingly, it is possible to attenuate efficiently a pressure wave in the manifold channel.

REFERENCES:
patent: 6685299 (2004-02-01), Hirota
patent: 6712454 (2004-03-01), Okuda
patent: 61016863 (1986-01-01), None
patent: 2002-355962 (2002-12-01), None
patent: 2003127354 (2003-05-01), None

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