The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2006
Filed:
Aug. 19, 2002
Bernd Schultheis, Schwahenheim, DE;
Holger Köbrich, Flörsheim, DE;
Rainer Solbach, Langenbach, DE;
Hans-jürgen Hommes, Herkersdorf, DE;
Dieter Jung, Daaden, DE;
Bernd Schultheis, Schwahenheim, DE;
Holger Köbrich, Flörsheim, DE;
Rainer Solbach, Langenbach, DE;
Hans-Jürgen Hommes, Herkersdorf, DE;
Dieter Jung, Daaden, DE;
Schott AG, Mainz, DE;
Abstract
An electrophotographic printing device including a toner-developer unit, a lighting device, a developer drum, a photoconductor, a transfer unit and an earthed charging device. The substrate to be printed is placed on a transport device and moved along the transfer unit and the toner image of the transfer unit is transmitted to the substrate. A clear, sharp and shadow-free printed image is obtained by arranging the substrate on a non-earthed, electrically conductive layer which is insulated relative to the earthed transport device by an insulator extending along the charging device that is located above the substrate and the measurement of substrate that is to be printed and that is oriented in the direction of transport. The charging device can be charged at a potential, exciting voltage U, of between 1 to 10 kV, more particularly 1.5 to 4 kV.