Microfluidic printing on receiver

Details Microfluidic printing on receiver Microfluidic printing on receiver

1997-06-03

1999-11-16

Le, N.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41J 205

Patent

active

059866780

ABSTRACT:
A method for microfluidic printing continuous tone color pixels on a reflective receiver by using cyan, magenta, and yellow inks, including supplying a fourth, colorless ink along with the cyan, magenta, and yellow inks needed for color printing and pumping the inks through capillary microchannels by microfluidic pumps. The method further includes mixing the correct amount of colorless ink with the cyan, magenta, or yellow inks to produce mixtures of ink having a desired correct hue and tone scale; and transferring the pixels of the ink mixtures to the reflective receiver to form colored pixels on the receiver comprising a support, a layer formed over the support of an ink impermeable material and cavities defined in a surface of the ink impermeable layer and an ink absorbing material disposed in the cavities for absorbing a determinable amount of ink until saturated such that ink is not conveyed to adjacent cavities.

REFERENCES:
patent: 4485387 (1984-11-01), Drumheller
patent: 4521785 (1985-06-01), Matsufuji
patent: 5745128 (1998-04-01), Lam et al.
patent: 5753360 (1998-05-01), Jones et al.
patent: 5804320 (1998-09-01), Tomioka et al.

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