Colour ink-jet printing method with optimized number of...

Details Colour ink-jet printing method with optimized number of... Colour ink-jet printing method with optimized number of...

2007-10-23

2007-10-23

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S043000, C358S001200

Reexamination Certificate

active

10534061

ABSTRACT:
A a color ink-jet printer has at least four ink cartridges each containing one basic color selected from among yellow, magenta, cyan and black, and at least one additional cartridge containing a basic pale color ink. A processor receives a printing order containing data concerning the requested color and/or the number and color of the ink droplets to be deposited on one another at a specific location of a selected printing substrate. The processor includes an optimizing mode capable of matching the requested color and/or the required number and color of droplets to be superimposed to obtain a selected color at a given pixel with an equivalent color and/or an equivalent number and/or color of droplets to be superimposed to obtain a substantially equivalent and satisfactory color rendering in conformity with the human eye sensory response. The thus-determined equivalent color and/or the equivalent number and color of droplets to be superimposed is applied to the printer for each printing order received.

REFERENCES:
patent: 6290330 (2001-09-01), Torpey et al.
patent: 6435657 (2002-08-01), Couwenhoven et al.
patent: 6827423 (2004-12-01), Katakura et al.
patent: 0 388 978 (1990-09-01), None
patent: 0 832 751 (1998-04-01), None
patent: 0 919 388 (1999-06-01), None

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