An image forming method using a cleaning blade which prevents the spherical toner to pass through a gap between the blade and a photosensitive member and which has durability so as to be less worn away or chipped, wherein it is possible to maintain cleaning performance over a long term even in high-speed printing using spherical toner, and a non-transferred toner and external additives dropping out from colored particles less causes filming on the photosensitive member and less gives damage to the surface of the photosensitive member, is provided. A method of forming an image using a toner having an average circularity of 0.95 to 0.998 to perform developing, transferring, fixing and cleaning for removing the toner remaining on the photosensitive member after the transferring by a cleaning blade 6 abutting on the photosensitive member, wherein an abutting portion of the cleaning blade 6 on the photosensitive member has an indentation modulus (A) of 5 to 15 KPa at an indenting load of 10 mN and 23.degree. C., a ratio of the modulus (A) to an indentation modulus (B) at an indenting load of 100 mN and 23.degree. C. of 1.1 to 1.8, and a loss tangent (tan .delta.) of the cleaning blade at 20 to 50.degree. C. in the range from 0.01 to 0.1.