Patent number: 6493012
Abstract: A method and apparatus for setting register on a multicolor printing machine (1) having color printing units (6, 6′, 6″, 6″) allocated to various printing inks and having image cylinders (2, 2′), equipment (3, 3′) for producing images, in particular electrostatic latent images, on the image cylinders (2, 2′, . . . ), a carrier (4) for printing substrates (15) and image transfer points (5, 5′, 5″, 5′″) for the transfer of the color separations (7, 7′, . . . ) from the color printing units (6, 6′, 6″, 6′″) to the printing substrates (15), an allocation of the image productions (11, 11′) on the image cylinders (2, 2′, . . . ) to the printing substrates (15) being carried out in order to achieve coincidence of register of the color separations (7, 7′, . . . ) in the print. This is achieved by a time-independent allocation of the positions of the image productions (11, 11′, . . .
Type:
Grant
Filed:
May 17, 2001
Date of Patent:
December 10, 2002
Assignee:
Nexpress Solutions LLC
Inventors:
Donald Buch, Ingo Klaus Dreher, Heiko Hunold, Christopher Liston, Patrick Metzler, Michael Mordhorst, Stephan Walter Pareigis, Robert Peffer, Karlheinz Walter Peter, Ralph Petersen, Frank Pierel, John Robert Thompson, Günther Voss