Method and apparatus for producing ink intensity modulated...

Details Method and apparatus for producing ink intensity modulated... Method and apparatus for producing ink intensity modulated...

B - Operations, Transporting

41

J

B41J 2/04 (2006.01) B41J 2/21 (2006.01) G01D 15/16 (2006.01)

Patent

CA 2245374

A gray scale ink jet printing method and apparatus which produce a high quality images having varying color intensities are disclosed. This is achieved by using a clear phase change ink base and a plurality of colored phase change inks with varying amounts of black dye, thereby producing multiple gray scale levels of black in images with substantial contrast between the imaged and non-imaged areas that are used in medical diagnostic imaging applications.

Procédé et dispositif d'impression par jet d'encre en niveaux de gris produisant des images de haute qualité avec un rendu des différentes densités des couleurs. Cet effet est obtenu grâce à l'utilisation d'une base incolore d'encre à changement de phase et des encres à changement de phase de diverses couleurs avec des proportions variables de noir, ce qui donne des images à dégradés de gris et un contraste marqué entre les images et le fond. Le procédé et le dispositif de cette invention sont utiles en imagerie médicale.

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