Method and apparatus for setting register on a multicolor printing machine by time independent allocation of positions of image productions to printing substrates

US6493012B2 · kind B2 · utility

Assignee

• NexPress Solutions LLC · US

Inventors

• Donald C. Buch · Penfield, US
• Ingo Dreher · Kiel, DE
• Heiko Hunold · Wattenbek, DE
• Christopher B. Liston · Rochester, US
• Patrick Metzler · Gettorf, DE
• Michael Mordhorst · Gettorf, DE
• Stephan Pareigis · Molfsee, DE
• Robert M. Peffer · Penfield, US
• Karlheinz Peter · Molfsee, DE
• Ralph Petersen · West Allis, US
• Frank Pierel · Kiel, DE
• John Robert Thompson · San Diego, US
• Gunther Voss · Dießen am Ammersee, DE

Key dates

• Filing date: May 17, 2001
• Grant date: Dec 10, 2002
• Expiry date: May 17, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/0161
• WIPO field: Optics
• WIPO sector: Instruments

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′, . . . ) on the image cylinders (2, 2′, . . . ) to the printing substrates (15) being carried out for at least one defined area (10, 10′, 10″, . . . , 10n) of all the color separations (7…