Patent ID: 8107869

Claim:
A fixing device comprising: a fixing member that includes a metal layer; a pressure member that forms a pressure portion between the pressure member and the fixing member, and that is driven to rotate; an electromagnetic induction heating member that causes the metal layer of the fixing member to generate heat; and a heater that is disposed so as to face the electromagnetic induction heating member through the fixing member and so as to be in contact with an inner side of the fixing member, and that is caused to generate heat by a magnetic field, a heat transfer lubricant being provided between the fixing member and the heater disposed on the inner side of the fixing member, wherein the heat transfer lubricant contains base oil made of heat-resistant oil, and heat transfer powder, and a rate of heat transfer of the heat transfer lubricant is not less than 0.2 W/m·K and is not more than 1.0 W/m·K.