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. 06, 1976
Filed:
Dec. 20, 1974
Ryoichi Namiki, Hino, JA;
Ricoh Co., Ltd., Tokyo, JA;
Abstract
A toner image formed on a support sheet by toner particles adhering to selected areas of the sheet is fused either by simply disposing the sheet in with a heating surface, or by additionally pressing the sheet. After the toner image particles are fused, the sheet is cooled while maintaining its image bearing side in contact with the surface previously used for heating, so that the toner particles solidify and the toner image is stiffened. The sheet is then separated from the surface with which it was previously in contact. In the course of heating, some toner particles of the image may temporarily adhere to the heating surface, but in the course of the cooling step, these toner particles develop a stronger adhesion to the remainder of the image and to the sheet. Thus, after the cooling step, no toner particles remain on the surface contacted by the sheet, and the so-called 'offset phenomenon' does not occur.