An image forming apparatus includes a plurality of development units each using a developer including a toner and a carrier, a density detection unit configured to perform a density detection operation for detecting a density of a detection toner image formed by each of the plurality of development units, and a replenishment unit configured to perform a toner replenishment operation based on a result of the detection by the density detection unit. In the image forming apparatus, at least two of the plurality of development units use respective toners having different color depths in the same hue, and a frequency of the density detection operation using the development unit using a lighter color toner is higher than a frequency of the density detection operation using the development unit using a darker color toner.