Patent ID: 7693474

Claim:
A fixing member used in an electrophotographic image forming apparatus, comprising a toner releasing layer formed on its surface, wherein the toner releasing layer contains as a main component a fluororubber having an ether linkage in its molecule, and further, contains a polysiloxane-type surface-active agent having a dimethylpolysiloxane structure and a polyoxyalkylene structure, wherein the toner releasing layer has a sea-island structure comprising a sea phase constituted of the fluororubber, and island phases consisting of the polysiloxane-type surface-active agent, and wherein a number-based average size of the island phases is 2 μm or less, and wherein the polysiloxane-type surface-active agent is represented by the following formula: where a and b each denotes 0 or an integer, n and m each denotes an integer, and R and R′ each denotes a saturated hydrocarbon or an unsaturated hydrocarbon.