US 7,321,746 B2 | ||
Image heating apparatus and pressure roller used in the apparatus | ||
Hiroyuki Sakakibara, Mishima (Japan); Osamu Sotome, Numazu (Japan); Tomoyuki Makihira, Ashigara-gun (Japan); and Shizuma Nishimura, Sunto-gun (Japan) | ||
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
Filed on Mar. 18, 2005, as Appl. No. 11/82,858. | ||
Claims priority of application No. 2004-087747 (JP), filed on Mar. 24, 2004. | ||
Prior Publication US 2005/0214044 A1, Sep. 29, 2005 | ||
Int. Cl. G03G 15/20 (2006.01) |
U.S. Cl. 399—333 | 15 Claims |
1. An image heating apparatus for heating an image formed on a recording material, comprising:
heating means for heating the image formed on the recording material;
a pressure roller for forming a nip portion in cooperation with said heating means, the recording material being conveyed
in the nip portion;
wherein said pressure roller has a heat resistive rubber layer in which acicular fillers with a thermal conductivity of 300
W/mK or higher are dispersed in a rate of 12 to 26 volume percentage.
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