Inline measurement and closed loop control method in printing machines

US7398733B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Loris De Vries · Buchs, CH
• Peter Ehbets · Bellinzona, CH
• Peter Elter · Radevormwald, DE
• Wolfgang Geissler · Bad Schönborn, DE
• Werner Huber · Witzenhausen, DE
• Robert Lange · Crimmitschau, DE
• Frank Muth · Karlsruhe, DE
• Christopher Riegel · Bruchsal, DE
• Manfred Schneider · Lichtenfels, DE
• Frank Schumann · Heidelberg, DE

Key dates

• Filing date: Nov 3, 2006
• Grant date: Jul 15, 2008
• Expiry date: Nov 3, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41F33/0036
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Spectral, densitometric, or color measured values are detected on sheet printing materials during the printing process in a sheet-fed printing press. The measured values are determined on sheets as they are moving through the printing press and the measured values are used in real-time by a computer to control parameters for controlling the printing process in the sheet-fed printing press.