Patent ID: 8111415

Claim:
An image forming apparatus comprising: an image forming position correction unit adapted to correct an image forming position in an amount smaller than one pixel in a sub-scanning direction by adjusting a density of a pixel in the sub-scanning direction for each position in a main scanning direction in order to correct an inclination or curve of the image; an image forming condition correction unit adapted to form a toner image for detection on an image carrier, cause an optical sensor to detect an amount of light reflected by the toner image for detection, and determine an image forming condition on the basis of a detection result by the optical sensor; a discriminator adapted to discriminate whether image formation is normal image formation for image formation on a printing medium or image formation of the toner image for detection by the image forming condition correction unit; and a controller adapted to control the image forming apparatus so as to correct an image forming position in the amount smaller than one pixel in the sub-scanning direction by using the image forming position correction unit in a case in which the discriminator has discriminated that the image formation is the normal image formation, but so as not to correct the image forming position in the amount smaller than one pixel in the sub-scanning direction by using the image forming position correction unit in a case in which the discriminator has discriminated that the image formation is of the toner image for detection.