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:
Aug. 30, 1994
Filed:
Aug. 20, 1991
Luis Lima-Marques, Henley Beach, AU;
MAN Roland Druckmaschinen AG, Offenbach am Main, DE;
Abstract
To facilitate transfer of a toner adhered to a ferro-electric recording member on a cylindrical carrier to a substrate web, for example a paper web, a temperature difference is established at the recording member between a toning station, where toner is applied to the ferro-electric surface and a transfer station where the toner is transferred to the substrate web. This temperature difference may be as small as 0.3.degree. C., but may be a few degrees C, in dependence on the printing speed, that is, speed of transfer from the cylindrical recording member to the paper web. The temperature difference may be obtained by applying a cooling element (10, 11) towards the ferro-electric layer (2) of the recording member, or a heater, or for example hot air (16) between the transfer station and retoning of the ferro-electric recording member at the toning station.