An image-forming apparatus includes: an image-holding member casing that encases an image-holding member; an apparatus main body into which the image-holding member casing is inserted to a predetermined position; a developing device casing provided in the apparatus main body, the developing device casing encasing a developing device; a pushing member provided in the apparatus main body to push the developing device casing in a first direction toward the image-holding member; and a contact portion provided on the image-holding member casing so as to contact the developing device casing for a predetermined period during insertion of the image-holding member casing toward the predetermined position, to push the developing device casing in a second direction opposite to the first direction, wherein, after the predetermined period, when the image-holding member casing reaches the predetermined position, the contact portion does not push the developing device casing in the second direction.