An image formation apparatus includes an imaging light source, a
photosensitive body and a correction light source. The imaging light
source outputs light modulated in accordance with image data representing
an image. An electrostatic latent image is formed at the photosensitive
body by the light output from the imaging light source. The correction
light source is provided separately from the imaging light source, and
outputs light toward the photosensitive body for correcting one of
variations in potential on the photosensitive body and irregularities in
density distribution of an image, which image is to be formed in
accordance with the electrostatic latent image that is formed on the
photosensitive body by the imaging light source.