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:
Apr. 27, 1976
Filed:
Jul. 24, 1974
Wolfram Saupe, Mammolshain, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
Electrophotographic copying apparatus is disclosed including electrically heatable contact fixing means for fixing an electrophotographically produced toner image on an image carrier. The fixing means includes an electroconductive fixing layer mounted in insulated relation upon a continuously moving web which, in the preferred embodiment, comprises a cylindrical member. Heating electrical energy is supplied to said electroconductive fixing layer via contact cap means which are mounted on the ends of the cylinder member and which engage the free edges of the electroconductive layer throughout the length thereof, respectively, and stationary sintered bearing means that are electrically connectd both with the contact means and with the source of electrical energy. Pressing means extend partially around the circumference of the cylindrical member in pressure engagement with the fixing surface, said pressing means exerting a sliding frictional force on the non-image side of the image carrier which is lesser than the static frictional force between the heatable fixing layer and the image side of the carrier. Preferably the pressing surface of the pressing means is formed of polytetraflouroethylene.