Patent ID: 7782355

Claim:
An image forming apparatus comprising: an image bearing member; a charging device configured to electrically charge said image bearing member; an exposure device configured to expose a surface of said image bearing member electrically charged by said charging device, said exposure device comprising a first exposure portion configured to expose the surface with a first laser and a second exposure portion configured to expose the surface with a second laser providing a laser spot size larger than that of the first exposure portion; an image forming station configured to form a toner image on a recording material by developing, into the toner image, an electrostatic latent image formed by exposure by said exposure device; and a control portion configured to control the first exposure portion or the second exposure portion so that an exposure ratio of the first laser to the second laser when an image is formed with a first density is higher than when the image is formed with a second density lower than the first density, and the exposure ratio when the image is formed with the second density is higher than when the image is formed with a third density lower than the second density.