Image-forming apparatus

An image-forming apparatus comprising:

• an image-holding member casing that encases an image-holding member for holding an image, such that the image-holding member is partially exposed;
• 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, such that the developing device is partially exposed, the developing device supplying developer to the image-holding member encased in the image-holding member casing inserted to the predetermined position;
• 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 in the apparatus main body, 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.