Image forming apparatus and process cartridge

The invention relates to an image forming apparatus and a processing cartridge. The image forming apparatus includes an image holding member; a developing device which accommodates a toner which contains at least one type of external additive having an average particle size of 0.02 [mu]m or greater, and toner particles having a surface with the external additive externally added thereto, and forms an image developed with the toner on a surface of the image holding member; a transfer device which transfers the developed image formed on the image holding member onto a recording medium; and a cleaning device which is provided with a cleaning blade constituted by a member in which at least a part which is brought into contact with the image holding member has a dynamic micro hardness of from 0.25 to 0.65, and brings the cleaning blade into contact with the surface of the image holding member after transfer of the developed image to perform cleaning.