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AssigneeNexPress Solutions LLC
InventorsIngo Klaus Dreher, Christopher Liston, Patrick Metzler, Karlheinz Walter Petter
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The invention relates to a method and apparatus for setting register in a multicolor printing machine having a number of items of equipment for the digital production of color separations, the actions of setting up and combining the color separations being controlled when printing substrates 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 grade, the influence of this change on the register can be compensated for optimally before the printing substrate (16) is fed to the printing process. This is achieved in that when the printing substrate grade is changed, the influence of all the properties of the printing substrate (16) that are relevant to the register is taken into account directly as the change is implemented, by means of correction values (4, 4′, . . . ) for the printing substrate (16) that are available before printing is carried out.
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 grade is changed, the influence of all the properties of the printing substrate (16) that are relevant to the register is taken into account directly as the change is implemented, by means of correction values (4, 4′, . . . ) for the printing substrate (16) that are available before printing is carried out.
Dependencies are inferred from the claim text.