An image forming apparatus includes an imaging unit configured to form pattern images in areas corresponding to positions at which toners including a specific color toner of a specific color are provided; a reading unit configured to read the formed pattern images; a color information detection unit configured to analyze color information of the read pattern images and detect the color information of the specific color toner; a position determination unit configured to determine the position at which the specific color toner is provided from a position at which the pattern image of the specific color is formed in the read pattern images; and a recording unit configured to record the detected color information of the specific color toner and the position at which the specific color toner is provided.