An image forming apparatus includes a fixing unit that includes a heating and pressurizing member, and fixes the toner image by performing the operation of heating and pressurizing on the toner imageon a recording medium twice or more times with the heating and pressurizing member, wherein the toner contains a toner particle which contains a binder resin containing a crystalline polyester resin,a colorant, and a release agent, and an external additive, and satisfies Expression: 2<=tan [delta]P1<=2.5, wherein tan [delta]P1 represents a maximum value of a mechanical loss tangent existing in arange where a complex elastic modulus is from 1x106 Pa to 1x108 Pa, which is measured at an angular frequency of 6.28 rad/sec and a distortion amount of 0.3%.