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:
Mar. 30, 1999
Filed:
Jan. 09, 1998
Takayuki Yamashita, Nakai-machi, JP;
Tsukasa Matsuda, Nakai-machi, JP;
Yuichi Fukuda, Nakai-machi, JP;
Tetsuo Yamada, Nakai-machi, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus such as a printer and a copying machine, employs a simultaneous transfer and fixing method to obtain a highly lustrous image of high image quality, free of uneven lusterand disordered pixels over the entire density area. Assuming the outside diameter of the convex side roll to be R (mm), the hardness of hardness test of durometer type A and the thickness of the surface layer of the concave side roll to be HR (degree) and dR (mm) respectively, the hardness of hardness test of durometer type A and the thickness of the surface layer of the toner image carrier in contact with the recording medium to be Hb (degree) and db (.mu.m) respectively, and the nip width to be N (mm), the material and thickness of each surface layer for these two rolls and the intermediate transfer belt are selected so as to satisfy the following relationship: