Image forming apparatus

An image forming apparatus includes: an image carrier that carries an image developed by a developer; an exposure part that has plural light-emitting parts that are shifted from one another so as to face the image carrier and in each of which plural light-emitting elements are aligned and forms an electrostatic latent image on the image carrier by exposing the image carrier to light; and plural density detection parts that are disposed at positions corresponding to substantially central positions of the plural light-emitting parts and at positions corresponding to end portions closer to end portions of the image carrier among end portions of two light-emitting parts disposed close to the end portions of the image carrier among the plural light-emitting parts and detect a density of an image obtained by developing the electrostatic latent image on the image carrier.