An image forming apparatus comprising: an electrophotographic photosensitive member; and a developing device comprising a toner, the developing device being for supplying the toner to the electrophotographic photosensitive member, wherein the electrophotographic photosensitive member comprises a surface layer comprising a binder resin (A), the binder resin (A) comprises a structure represented by the following formula and a structure represented by the following formula : where, in the formula , each R 11 independently represents a hydrogen atom or a methyl group, where, in the formula , each R 21 independently represents a hydrogen atom or a methyl group, and R 22 and R 23 independently represent hydrogen atoms, methyl groups, ethyl groups or phenyl groups, or R 22 and R 23 are linked to each other to form a cycloalkylidene group, the toner comprises a toner particle, the toner particle comprises a binder resin (B) and a wax, the wax has a value δp(w) of a polarity term based on Hansen solubility parameters, as determined according to the description, of 1.8 to 2.5 (J/cm 3 ) 0.5 , and the wax comprises at least one selected from the group consisting of a diester compound represented by the following formula , a pentaerythritol ester compound, and a dipentaerythritol ester compound: where, in the formula , R 1 represents an alkylene group having a number of carbon atoms of 1 to 3, and R 2 and R 3 independently represent alkylene groups having a number of carbon atoms of 15 to 22. an electrophotographic photosensitive member; and a developing device comprising a toner, the developing device being for supplying the toner to the electrophotographic photosensitive member, wherein the electrophotographic photosensitive member comprises a surface layer comprising a binder resin (A), the binder resin (A) comprises a structure represented by the following formula and a structure represented by the following formula : where, in the formula , each R 11 independently represents a hydrogen atom or a methyl group, where, in the formula , each R 21 independently represents a hydrogen atom or a methyl group, and R 22 and R 23 independently represent hydrogen atoms, methyl groups, ethyl groups or phenyl groups, or R 22 and R 23 are linked to each other to form a cycloalkylidene group, the toner comprises a toner particle, the toner particle comprises a binder resin (B) and a wax, the wax has a value δp(w) of a polarity term based on Hansen solubility parameters, as determined according to the description, of 1.8 to 2.5 (J/cm 3 ) 0.5 , and the wax comprises at least one selected from the group consisting of a diester compound represented by the following formula , a pentaerythritol ester compound, and a dipentaerythritol ester compound: where, in the formula , R 1 represents an alkylene group having a number of carbon atoms of 1 to 3, and R 2 and R 3 independently represent alkylene groups having a number of carbon atoms of 15 to 22. where, in the formula , each R 21 independently represents a hydrogen atom or a methyl group, and R 22 and R 23 independently represent hydrogen atoms, methyl groups, ethyl groups or phenyl groups, or R 22 and R 23 are linked to each other to form a cycloalkylidene group, the toner comprises a toner particle, the toner particle comprises a binder resin (B) and a wax, the wax has a value δp(w) of a polarity term based on Hansen solubility parameters, as determined according to the description, of 1.8 to 2.5 (J/cm 3 ) 0.5 , and the wax comprises at least one selected from the group consisting of a diester compound represented by the following formula , a pentaerythritol ester compound, and a dipentaerythritol ester compound: where, in the formula , R 1 represents an alkylene group having a number of carbon atoms of 1 to 3, and R 2 and R 3 independently represent alkylene groups having a number of carbon atoms of 15 to 22. <EOS>