Patent ID: 6640062
Filing Date: 2003-10-28
Classification: G03G

Abstract:
A toner image fixing device provided with a sheet separating portion for separating a recording material from a cylindrical surface of a fixing roller, the sheet separating portion capable of changing position from a contacting position in which the sheet separating portion is in contact with the surface of the fixing roller to a detached position in which the sheet separating portion is apart from the surface of the fixing roller and vice versa,a sheet separating portion driving means for turning the sheet separating portion into the contacting position or the detached position and a control means for controlling the sheet separating portion driving means based on, at least, either one of a humidity and a kind of recording material, wherein the sheet separating portion driving means turns the sheet separating portion into the contacting position in which it is in contact with the surface of the fixing roller when a paper sheet is thin.