Patent · US Expired

Non-mechanical printer or copier means comprising an exposure means arranged in the development region

US5023664A · kind A · utility

2Cited by

8References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rainer Koefferlein · Munich, DE
Bernhard Schlageter · Ottobrunn, DE
Erich Baier · Schweitenkirchen, DE

Key dates

Filing date	Mar 22, 1989
Grant date	Jun 11, 1991
Priority date	—
Expiry date	Mar 22, 2009

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/095
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An exposure means is provided between a development region and a carrier stripping drum that removes carrier particles, being provided inside the developer station of a non-mechanical fast data printer means. The exposure means illuminates and thereby discharges the highly charged and non-toner-covered regions of the surface of a charge image carrier. The adhesion of negative carrier particles of the developer mix to the non-exposed regions of the surface of the charge image carrier is thus reduced, so that they can be easily stripped from the surface of the charge image carrier by the following carrier stripping drum.

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