Color image forming apparatus using inks of plural densities

Details Color image forming apparatus using inks of plural densities Color image forming apparatus using inks of plural densities

1997-11-19

2000-10-10

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 15, B41J 201

Patent

active

06130686&

ABSTRACT:
A color image forming apparatus includes an image signal input portion which supplies three image signals C, M and Y associated with cyan, magenta and yellow; an image signal conversion processing portion which converts the image signals C, M and Y into six image signals associated with thick C and thin C, thick M and thin M, and thick Y and thin Y, respectively, by using a thick/thin sorting table; and a color masking processing portion which performs color masking process, and outputs converted six image signals associated with thick C to thin Y. The converted six image signals undergo a black generation process, a UCR process and a black printing process, and a binarization processing thereafter. This makes it possible to produce color images of high quality with high reproducibility even if the hues of N color materials, which belong to the same color family and have different densities, such as thin cyan and thick cyan, differ from each other to some extent.

REFERENCES:
patent: 4313124 (1982-01-01), Hara
patent: 4345262 (1982-08-01), Shirato et al.
patent: 4459600 (1984-07-01), Sato et al.
patent: 4463359 (1984-07-01), Ayata et al.
patent: 4558333 (1985-12-01), Sugitani et al.
patent: 4608577 (1986-08-01), Hori
patent: 4635078 (1987-01-01), Sakurada et al.
patent: 4723129 (1988-02-01), Endo et al.
patent: 4740796 (1988-04-01), Endo et al.
patent: 4860026 (1989-08-01), Matsumoto et al.
patent: 4907013 (1990-03-01), Hubbard et al.
patent: 4959659 (1990-09-01), Sasaki et al.
patent: 5030317 (1991-07-01), Noguchi
patent: 5162860 (1992-11-01), Nami et al.
patent: 5252992 (1993-10-01), Fukushima et al.
patent: 5355159 (1994-10-01), Kaneko

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