Patent ID: 7428388

Claim:
An image formation apparatus comprising: an imaging light source that outputs light modulated in accordance with image data representing an image; a photosensitive body at which an electrostatic latent image is formed by the light output from the imaging light source; a correction light source that is provided separately from the imaging light source, and that outputs light toward the photosensitive body to correct variations in potential on the photosensitive body or irregularities in density distribution of an image, the image being formed in accordance with the electrostatic latent image that is formed on the photosensitive body by the imaging light source; a detector that detects at least one of the potential on the photosensitive body and the density distribution of the image that has been formed; a controller that controls the correction light source on the basis of detection results from the detector such that at least one of the potential on the photosensitive body and the density distribution of an image to be formed is substantially uniform; and a reference position detector that detects a reference position of the photosensitive body, wherein the controller controls the correction light source on the basis of detection results from the detector and the reference position detector.