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AssigneeNexPress Solutions LLC
InventorsIngo Klaus Dreher, Patrick Metzler, Karlheinz Walter Peter
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The invention relates to a method and apparatus for the digital production of color separations (3, 3′, . . . ), the actions of setting up and combining the color separations (3, 3′, . . . ) being controlled when printing substrates (16) of a different grade are fed in, in order to correct the register setting. These are to be designed in such a way that in the event of a change in the printing substrate, the influence of this change on the register can to a large extent be counteracted before the printing substrate is fed to the printing process. This is achieved in that when the printing substrate thickness (17) is changed because of a printing-substrate change, the influence of the printing substrate thickness (17) on the register is taken into account directly as the change is implemented, by means of existing influencing variables (4, 4′, . . . ).
A method of setting register in a multicolor printing machine (1) having a number of items of equipment (2, 2′, . . . ) for the digital production of color separations (3, 3′, . . . ), the actions of setting up and combining the color separations (3, 3′, . . . ) being controlled when printing substrates (16) of a different grade are fed in, in order to correct the register setting, wherein when the printing substrate thickness (17) is changed because of a printing-substrate change, the influence of the printing substrate thickness (17) on the register is taken into account directly as the change is implemented, by means of existing influencing variables (4, 4′, . . . ).
Dependencies are inferred from the claim text.