EP 0255031 A2 19880203 - Method of controlling dot gain on proof print.
Title (en)
Method of controlling dot gain on proof print.
Title (de)
Verfahren zur Kontrolle der Punktvergrösserung auf einem Probeabzug.
Title (fr)
Méthode de détermination du grossissement du point sur une épreuve.
Publication
Application
Priority
JP 17346786 A 19860722
Abstract (en)
Disclosed is a novel method of controlling dot gain of the halftone dots on a proof prints, which comprises the steps of: printing an object to be proofed including a control patch at different velocities, to obtain proof prints; obtaining dot gain values in respective prints; inputting the dot gain values to a memory of a proof press to be used for proof printing; calculating on the basis of the dot gain values and the printing velocities at which the printing is carried out; obtaining an approximate expression representing the relationship between the printing velocity and the dot gain value; inputting a desired dot gain value; obtaining an actual printing velocity corresponding to the desired dot gain value on the basis of the approximate expression; and carrying out an actual proof printing of the object at the actual printing velocity.
IPC 1-7
IPC 8 full level
B41F 3/20 (2006.01); B41F 3/28 (2006.01); B41F 7/18 (2006.01); B41F 31/02 (2006.01); B41F 33/00 (2006.01)
CPC (source: EP)
B41F 3/28 (2013.01); B41F 33/0036 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0255031 A2 19880203; EP 0255031 A3 19890510; JP S6328649 A 19880206
DOCDB simple family (application)
EP 87110599 A 19870722; JP 17346786 A 19860722