Printer or copier for simultaneously printing a supporting material on both sides

US6556804B1 · kind B1 · utility

Assignee

• Océ Printing Systems GmbH · DE

Inventors

• Markus Lobel · Witten, DE
• Vilmar Eggerstorfer · Poing, DE
• Manfred Viechter · Walpertskirchen, DE
• Albrecht Gerstner · Mühldorf a. Inn, DE
• Karl Zappe · Schwindegg, DE

Key dates

• Filing date: Apr 18, 2001
• Grant date: Apr 29, 2003
• Expiry date: Apr 18, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/1609
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A printer or copier operates to print a carrier material on both sides. A transfer station in the printer or copier has two transfer bands which transfer toner images onto the supporting material. A transfer corotron recharges the toner particles to a polarity for transfer to the carrier material at a transfer location. A first transfer mode provides for accumulating a plurality of toner images on the transfer band before transfer to the carrier material. A second transfer mode provides continuous transfer of the toner image to the carrier material.