Invention Grant
US07672633B2 Fixing roller with conductive inner layers, and fixing device and image forming apparatus being provided therewith 有权
具有导电内层的固定辊,以及定影装置和图像形成装置

Fixing roller with conductive inner layers, and fixing device and image forming apparatus being provided therewith
Abstract:
A fixing roller is configured in a manner that a conductive primer layer, a conductive intermediate layer, and a non-conductive outermost layer (a release layer) are coated sequentially onto a surface of an outer circumference of a hollow cylindrical cored bar. The intermediate layer is composed of a non-conductive fluorine resin layer having conductive materials dispersed therein, and a surface thereof is a rough surface having a large number of convex portions and concave portions formed thereon. The outermost layer is composed of a non-conductive fluorine resin only, and a surface thereof is a flat and smooth surface so as to ensure a favorable release property of a recording medium.
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