Method and apparatus for ink control and zonal presetting

Details Method and apparatus for ink control and zonal presetting Method and apparatus for ink control and zonal presetting

1991-01-23

1992-12-15

Fisher, J. Reed

Printing

Inkers

Fountains

101483, 101217, B41F 3104, B41F 3316

Patent

active

051707110

ABSTRACT:
The values ascertained from printer's copies (8, 9), for ink zone presetting, are supplied to a color supply detection computer (3) via a film/plate scanner (4). Before the various scanning areas in accordance with scanning patterns (7) are summed up, the zonal preset values ascertained by the ink supply detection computer (3) undergo a correction in accordance with the value furnished by a weighting computer (16) for each scanning area. This optimizes the presetting of the ink zones. As a function of the corrected values taking the subject to be printed into account, ductor rollers (22) and rubber rollers (21) can be controlled in order to improve the ink penetration as a function of the subject in the circumferential direction as well.

REFERENCES:
patent: 3958509 (1976-05-01), Murray et al.
patent: 4665496 (1987-05-01), Ott
patent: 4852485 (1989-08-01), Brunner
patent: 4949284 (1990-08-01), Watanabe
patent: 5029526 (1991-07-01), Kipphan
patent: 5031534 (1991-07-01), Brunner
patent: 5070784 (1991-12-01), Nishida et al.

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