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:
Dec. 14, 1999
Filed:
Dec. 19, 1997
Hiroshi Kataoka, Susono, JP;
Masaharu Ohkubo, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a fixing device, a recording material having an unfixed toner image formed thereon is inserted between a pair of rotating members, and the toner image is fixed on the recording material by heating/pressing the recording material having the unfixed toner image formed thereon. By providing the fixing device with a releasing layer, made of a PFA resin having end groups of --CF.sub.3, formed on a surface of a fixing rotating member, which serves as one of the pair of rotating members, contacting the unfixed toner image, and a releasing layer, having a volume resistivity of 10.sup.13 -10.sup.15 .OMEGA..multidot.cm (when applying a DC voltage of 500 V) and made of a PFA resin containing a conductivity providing material, formed on a surface of a pressing rotating member, which serves the other one of the pair of rotating members, a problem of offset is solved.