Ink jet print head

Details Ink jet print head Ink jet print head

2008-08-21

2010-06-15

Nguyen, Thinh H (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S047000

Reexamination Certificate

active

07735962

ABSTRACT:
An object of the present invention is to provide an ink jet print head having plural types of nozzles arranged on the same substrate and through which ink droplets of different sizes are ejected, the ink jet print head exhibiting acceptable ejection performance regardless of the type of the nozzle. Thus, according to the present invention, each of the plural types of nozzles includes a bubbling chamber having an ejection energy generating element allowing an ink droplet to be ejected to a position located opposite an ejection port and an ejection port portion allowing the ejection port and the bubbling chamber to communicate with each other. Ratio of opening area of the ejection port portion at a position where the ejection port portion and the bubbling chamber communicate with each other, to the opening area of the ejection port is higher for the nozzle with a smaller ejection amount.

REFERENCES:
patent: 6575560 (2003-06-01), Kaneko et al.
patent: 6830317 (2004-12-01), Tsuchii et al.
patent: 6964467 (2005-11-01), Kaneko et al.
patent: 6971736 (2005-12-01), Tomizawa et al.
patent: 6976748 (2005-12-01), Yabe et al.
patent: 6984026 (2006-01-01), Tomizawa et al.
patent: 7387371 (2008-06-01), Oikawa
patent: 7399060 (2008-07-01), Tsuchii
patent: 2002/0001015 (2002-01-01), Kojima et al.
patent: 2004/0218007 (2004-11-01), Tomizawa et al.
patent: 2007/0035580 (2007-02-01), Ide et al.
patent: 2007/0206065 (2007-09-01), Tomizawa et al.
patent: 2008/0001994 (2008-01-01), Kaneko
patent: 2008/0111868 (2008-05-01), Yamane
patent: 2008/0143786 (2008-06-01), Oikawa et al.
patent: 2008/0239011 (2008-10-01), Ide et al.
patent: 2009/0040273 (2009-02-01), Tsuchii et al.
patent: 2009/0058934 (2009-03-01), Matsumoto
patent: 2009/0058949 (2009-03-01), Tomizawa et al.
patent: 2009/0066752 (2009-03-01), Ide et al.
patent: 2009/0066753 (2009-03-01), Matsumoto
patent: 2009/0147056 (2009-06-01), Oikawa et al.
patent: 2004-42651 (2004-02-01), None
patent: 2004-42652 (2004-02-01), None

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