Electrographic printing device with opposite-lying printing units

US6141523A · kind A · utility

Assignee

• Oce Printing Systems GmbH · DE

Inventors

• Peter Bergmann · Oberding, DE
• Vilmar Eggerstorfer · Poing, DE

Key dates

• Filing date: Aug 9, 1999
• Grant date: Oct 31, 2000
• Expiry date: Aug 9, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/00455
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An electrographic printing unit containing at least two printing units whose transfer printing points lie opposite one another is shown and described. This configuration enables high-speed duplex printing. Also disclosed is a printing unit with a photoconducting band and two exposure units located along the perimeter thereof. The exposure units superimpose two latent images each time the photoconducting band rotates.