Patent · US Expired

System and method for transfer of an electrical voltage to/from a rotating roller

US7260340B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignee

Oce Printing Systems GmbH · DE

Inventors

Michael Ullrich · Heubach, DE
Stefan Brecht · Munich, DE
Friedrich Meschenmoser · Munich, DE

Key dates

Filing date	Aug 27, 2004
Grant date	Aug 21, 2007
Priority date	—
Expiry date	Jan 1, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG03G2221/166
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In order to be able to supply a rotating transfer roller in a transfer printing station of an electrophotographic printing device with a high voltage, a system and method is proposed that comprises a voltage transfer device with an elastically borne brush, a compensation device with a bushing standing under spring force, and a monitoring device with a Hall switch. For voltage transfer, the brush is pressed onto the voltage connection location of the transfer roller. For compensation of the axial play of the transfer roller, the bushing is pressed onto the bearing of the transfer roller. For monitoring as to whether a transfer roller is connected with the device, the Hall switch is used which checks whether the bushing has been moved or not.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.