Print control strip

US4947746A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Willi Jeschke · Bad Herrenalb, DE
• Gerhard Loffler · Walldorf, DE

Key dates

• Filing date: Dec 14, 1989
• Grant date: Aug 14, 1990
• Expiry date: Dec 14, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S101/46
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A print control strip which allows the optional use of both solid tone control/regulation and halftone control/regulation, and in which the color control/regulation is optimized on the basis of values derived from the solid tone density and the halftone density from single color and/or multicolor halftone fields. Such print control strips are used for control/regulation of the ink feed in the inking mechanism of rotary printing presses. The print control strip disclosed includes alternating single color solid tone fields for each ink color and single color halftone fields for each ink color, and multicolor halftone fields corresponding to every second color zone. There may also be zonally alternating single color solid tone fields for each ink color and multicolor halftone fields.