The developing apparatus which develops a latent image formed on an photosensitive drum by a toner is provided with a developing roller which bears the toner, and an RS roller abutting against to this developing roller so as to perform the removal and supply of the toner on the photosensitive drum, and at the same time, is provided with adjusting means which adjusts a pushed-in amount for the developing roller of the RS roller according to the characteristic of the RS roller.