| 摘要 |
<p>A method of heat fixing a toner image comprises heat fixing a toner image on a recording material with a heating member fixed and supported and a pressurizing member which is opposed to, in pressure contact with said heating member and adapted to bring said recording material into pressure contact with said heating member through a film, wherein said toner image is formed of a toner, said toner comprises a binder resin and a colorant, said binder resin has a melt viscosity of 0.1 to 10<7> centipoise at 140 <o>C and the gradient ( theta ) of the straight line represented by the following formula comprising the reciprocal number (1/T) of the absolute temperature when the toner is melted by heating with the heating member and the logarithm (log eta ) of the melt viscosity of the binder resin at this time is 10<2> to 3 x 10<3>: log eta = theta .(1/T) + B min (where B min represents a constant); and peeling off said film from the surface of the recording material having the fixed toner image under the temperature condition which is higher than the temperature T4 of the maximum value of the heat absorption peak of said toner.</p> |
