Patent · US Expired

Method and apparatus for ink control and zonal presetting

US5170711A · kind A · utility

28Cited by

7References

19Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Werner Maier · Schifferstadt, DE
Gerd Steiner · Heusenstamm, DE
Josef Schneider · Diedorf, DE

Key dates

Filing date	Jan 23, 1991
Grant date	Dec 15, 1992
Priority date	—
Expiry date	Jan 23, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F33/0027
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.