Method of register regulation and printing control element for determining register deviations in multicolor printing

US5696890A · kind A · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Wolfgang Geissler · Bad Schönborn, DE
• Gerhard Fischer · Offenbach, DE
• Helmut Kipphan · Schwetzingen, DE
• Rudolf-Karl Uhrig · Schriesheim, DE

Key dates

• Filing date: Aug 28, 1996
• Grant date: Dec 9, 1997
• Expiry date: Aug 28, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41P2213/91
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Printing control element for detecting color register deviations in a defined direction, the printing control element being disposed in a selected region on a printed product produced by a printing press and scannable by a single opto-electronic sensor device, includes a plurality of equidistant geometric figures disposed adjacent one another in a row without gaps therebetween in the defined direction when a print is in-register, every third one of the adjacent geometric figures being in a set color and, respectively, in the defined direction, one of the geometric figures in another color being disposed adjoining the third geometric figure; and a method of regulating color register.