Elastic rotatable member
AssigneesCanon Kabushiki Kaisha, I.S.T. Corporation
InventorsTsukasa Kuge, Masahiro Goto, Isamu Sakane
Life of this patent
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Abstract
An elastic rotatable member usable for image fixing includes an elastic layer having a roughened surface, a resin layer formed by applying a liquid resin on the surface of the elastic layer and heating it up to a temperature not lower than its crystalline melting point and then quickly cooling it, wherein the resin layer has a side near the elastic layer, having a number of fine concave and convex portions, and wherein the convex portions are in concave portions of the surface of the elastic layer, and the concave portions of the resin layer is pressed by the convex portions of the elastic layer.
Claims15
A roller for fixing an image, comprising:
- a core member;
- an elastic rubber layer on said core member;
- at least two fluorine resin layers on said elastic layer, said resin layers being provided by sintering unsintered fluorine resin, the outside one of said resin layers being free of filler material.
A roller according to claim 5, wherein said fluorine resin layers are provided by heat-sintering flourine resin at a temperature above its crystalline melting point.
An image fixing apparatus, comprising:
- a first rotatable member containing therein a heat source and adapted to contact an unfixed image to be fixed;
- a second rotatable member associated with said first rotatable member to fix the unfixed image;
- said first rotatable member, comprising:
- a core member;
- an elastic rubber layer on said core member;
- at least two fluorine resin layers provided on said elastic layer by sintering unsintered fluorine resin, an outside one of said resin layers being free of filler material.
Dependencies are inferred from the claim text.