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
OG exemplary drawing
 
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.