Method and apparatus to improve toner transfer in a printer

US9823605B2 · kind B2 · utility

Assignee

• Océ Printing Systems GmbH & Co. KG · DE

Inventors

• Sabine Kauffmann-Guerrero · Munich, DE
• Thomas Montag · Unterhaching, DE

Key dates

• Filing date: Jun 3, 2016
• Grant date: Nov 21, 2017
• Expiry date: Jun 3, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G15/168
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A print group for a digital printer can include a transfer station and a wetting system. The transfer station can be configured to transfer a toner image onto a first side of a recording medium at a transfer point in response to an electrical field, the transfer station being configured to apply the electrical field between a transfer electrode on the first side of the recording medium and a counter-electrode on a second side of the recording medium, wherein the recording medium is directed between the transfer electrode and the counter-electrode. The wetting system can be configure to apply a conductive fluid onto a surface of the second side of the recording medium at the transfer point, the conductive fluid at least partially forming a conductive connecting layer between the surface of the second side of the recording medium and a surface of the counter-electrode at the transfer point.