Abstract: An image forming apparatus includes a plurality of image forming units that form toner images in different color; an image carrier which carries the toner image of each color; a determination unit that determines, in relation to a size of image data instructed to print, whether or not a first area where a misregistration correcting image is formed at an end portion in a width direction of the image carrier is secured; a first control unit that controls the image forming unit; and a detection sensor that detects the misregistration correcting image formed on the image carrier by controlling of the first control unit; wherein the misregistration of the toner image formed by each image forming unit is corrected on a basis of a value detected by the detection sensor.