Method and apparatus for printing grey levels with curable inks

Details Method and apparatus for printing grey levels with curable inks Method and apparatus for printing grey levels with curable inks

2005-06-14

2005-06-14

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S100000, C347S102000

Reexamination Certificate

active

06905193

ABSTRACT:
A method and apparatus for dot matrix printing of an image on a printing medium using radiation curable compositions is described. The image is printed using the radiation curable composition as at least one set of mutually interstitially printed sub-images, each sub-image comprising a set of dots, a dot consisting of a number of droplets applied on top of each other, each droplet being formed from one of a plurality of radiation curable compositions, the droplets mixing on the printing medium thus forming the dot with a specific grey level. Before printing a next sub-image from the set of sub-images, the dots of the previously interstitially printed sub-image are actively rendering non-migratory by exposing them to radiation.

REFERENCES:
patent: 4547786 (1985-10-01), Logan et al.
patent: 02 10 0329 (2002-09-01), None
patent: WO 00/30856 (2000-06-01), None
patent: WO 01/17780 (2001-03-01), None

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