Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-02-22
2008-08-26
Nguyen, Thinh H (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
07416273
ABSTRACT:
The liquid ejection head includes: a large nozzle which ejects a large droplet of liquid; a small nozzle which has a smaller nozzle diameter than the large nozzle and ejects a small droplet of the liquid which has a smaller volume than the large droplet; a first heat generating element and a second heat generating element which are provided opposite to the large nozzle and the small nozzle respectively, and apply thermal energy to the liquid in at least one individual flow channel that supplies the liquid to the large nozzle and the small nozzle in such a manner that a bubble causing the large droplet of the liquid to be ejected from the large nozzle and a bubble causing the small droplet of the liquid to be ejected from the small nozzle respectively; a first liquid chamber which is provided between the large nozzle and the at least one individual flow channel and between the large nozzle and the first heat generating element corresponding to the large nozzle.
REFERENCES:
patent: 6447088 (2002-09-01), Tachihara et al.
patent: 6789877 (2004-09-01), Murakami et al.
patent: 2001/0043243 (2001-11-01), Tachihara et al.
patent: 9-254413 (1997-09-01), None
Birch & Stewart Kolasch & Birch, LLP
Fujifilm Corporation
Nguyen Thinh H
LandOfFree
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