Patent ID: 8224223

Claim:
A roller used for an image heating apparatus, comprising: a metal core; an elastic layer containing a pitch based carbon fiber, wherein a dispersed amount of the pitch based carbon fiber dispersed in said elastic layer is not less than 5 vol % and not more than 40 vol %, wherein the thermal conductivity (λ y ) of said elastic layer in an axial direction of said roller is equal to or more than 2.5 W/(m·k) and an ASKER-C hardness of said elastic layer is not more than 60 degrees; and, a solid rubber elastic layer provided between said metal core and said elastic layer containing the pitch based carbon fiber, wherein a thermal conductivity (λ) of said solid rubber elastic layer in a thickness direction of said solid rubber elastic layer is not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k).