Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-11-06
2007-11-06
Nguyen, Lamson (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S015000, C347S029000
Reexamination Certificate
active
11150125
ABSTRACT:
The image quality deterioration due to the collection of dots of low-lightness by the preliminary ejection is prevented, in the case of performing the ink ejection for preliminary ejection during the printing onto printing paper. More specifically, the preliminary ejection pattern is set as a pattern in which the distance between a cyan dot of relatively low-lightness and a magenta dot is longer than a distance between a yellow dot of relatively high-lightness and a cyan dot nearest the yellow dot among low-lightness colors. Closely forming dots of low-lightness that would be perceived as a group of collected dots can be prevented, thereby performing printing that will not deteriorate the printing quality due to the paper preliminary ejection.
REFERENCES:
patent: 6984009 (2006-01-01), Nakagawa et al.
patent: 7014292 (2006-03-01), Yazawa et al.
patent: 7029092 (2006-04-01), Edamura et al.
patent: 55-139269 (1980-10-01), None
Baba Naoko
Furuichi Tomomi
Kanematsu Daigoro
Nagamura Mitsutoshi
Suzuki Kazuo
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Nguyen Lamson
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