Image forming apparatus

An image forming apparatus capable of forming an image on a perforated sheet, comprising:

• an image forming portion configured to form a toner image with toner of a plurality of colors;
• an image processing portion configured to perform image processing on image data acquired;
• and
• a controller configured to control the image processing portion to form the toner image on the basis of the image data processed by the image processing portion,
• wherein in a case that a sheet on which the toner image is to be formed is the perforated sheet, the image processing portion performs the image processing so that black image data is formed as image data of process black with the toner of the plurality of colors by the image forming portion,
• wherein the controller is capable of acquiring a position of the perforated sheet where perforations are formed,
• wherein the image processing portion performs the image processing so that the black image data corresponding to a predetermined region of the perforated sheet where the perforations are formed is formed as the image data of the process black by the image forming portion, and
• wherein the image processing portion specifies the image data positioned in the predetermined region on the basis of the position where the perforations are formed.