Ink dot size control for ink transfer printing

Details Ink dot size control for ink transfer printing Ink dot size control for ink transfer printing

1992-11-30

1995-01-10

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

B41J 2005, G01D 1516

Patent

active

053811666

ABSTRACT:
An ink transfer printing device having improved ink dot size control. The ink transfer printing device includes an ink container for retaining ink and a perforated ink transfer surface coupled to the ink container. The ink transfer surface includes at least one concentric region on the ink transfer surface about each of the perforations to control the spread of the ink. The concentric regions form flow barriers which impede the spread of the ink at each orifice. The ink dot size control provided by the present invention facilitates continuous toning, gray scale toning and multi-color printing.

REFERENCES:
patent: 3790703 (1974-02-01), Carley
patent: 4164745 (1979-08-01), Cielo et al.
patent: 4263601 (1981-04-01), Nishimura
patent: 4275290 (1981-06-01), Cielo et al.
patent: 4387382 (1983-06-01), Kohashi
patent: 4420764 (1983-12-01), Okada
patent: 4422082 (1983-12-01), Louzil
patent: 4561789 (1985-12-01), Saito
patent: 4608577 (1986-08-01), Hori
patent: 4675694 (1987-06-01), Bupara
patent: 4751532 (1988-06-01), Fujimura
Robert C. Durbeck et al., "Output Hardcopy Devices", Academic Press, Inc., 1988, pp. 348-349.

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