Multicolor printing device

Details Multicolor printing device Multicolor printing device

1995-12-19

2000-06-06

Le, N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 19, 347 14, 347 7, B41J 221, B41J 29293, B41J 2938, B41J 2195

Patent

active

060709642

ABSTRACT:
A multicolor printing device that synthesizes a substitute color by mixing color materials to perform a printing operation with no interruption due to the reduction of the specific color material. The device judges whether the specific color material remains. If no black color material remains, the device judges whether the substitute color is to be produced. If the production of the substitute color is set, density information of the black color material is converted to density information of the three colors. Furthermore, if the residual quantity of the specific color material is below a predetermined value and if the production of the substitute color is set, density conversion of the color materials is likewise performed.

REFERENCES:
patent: 4833491 (1989-05-01), Rezanka
patent: 5057852 (1991-10-01), Formica et al.
patent: 5315317 (1994-05-01), Terasawa et al.
patent: 5355159 (1994-10-01), Kaneko
patent: 5367328 (1994-11-01), Erickson
patent: 5581284 (1996-12-01), Hermanson
patent: 5587730 (1996-12-01), Karz
patent: 5646656 (1997-07-01), Leonhardt et al.
English-language abstract of Japanese Laid-open Patent Publication No. 3-142249; Jun. 1991.

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