EP 0031358 B1 19840926 - PRESS PRESETTING METHOD
Title (en)
PRESS PRESETTING METHOD
Publication
Application
Priority
US 5193079 A 19790625
Abstract (en)
[origin: WO8100007A1] A method of automatic control of a printing press (10) comprising the steps of scanning a representation of an image to be printed by means of a light table (70) to derive therefrom objective date representing the average density of the inked image in areas corresponding to those controlled by keys (48) of an in k fountain, producing multiple printed copies (85) of the image as a result of subjective operator (80) intervention in the setting of the fountain keys, recording the objective data in memory (75) and subjective data representing the setting of the fountain keys as set by the operator in memory (90) for a plurality of different press runs, analyzing both the objective data and the key setting data by examining a plurality of harmonic components thereof sufficiently large to represent accurately that data by circuit means (100), correlating by a linear regression analysis respective harmonic components of the objective data and subjective data over said plurality of press runs and storing said linear regression parameters, thereafter scanning a representation of a new image to be printed by light table (70) to derive objective data therefrom, analyzing the new objective data by examining its harmonic components in circuit means (100) and by applying the regression parameter data for each previously found harmonic values, deriving therefrom key setting instructions for presetting the press (10).
IPC 1-7
IPC 8 full level
B41F 33/00 (2006.01)
CPC (source: EP)
B41F 33/0027 (2013.01)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
WO 8100007 A1 19810108; DE 3069280 D1 19841031; EP 0031358 A1 19810708; EP 0031358 A4 19811124; EP 0031358 B1 19840926; EP 0031358 B2 19900801
DOCDB simple family (application)
US 8000772 W 19800623; DE 3069280 T 19800623; EP 80901371 A 19810112