An image forming apparatus allows mounting thereon and dismounting therefrom a plurality of types of cartridges, each of the cartridges including a plurality of process members used for image formation and a storage medium for storing information. The image forming apparatus includes a storage unit that stores a plurality of pieces of setting information for setting an image forming condition in accordance with a plurality of characteristics of the cartridges; and a controller that sets the image forming condition based on information regarding a usage amount of each of the plurality of types of cartridges and selection information for selecting one of the plurality of pieces of setting information, the selection information being stored in the storage medium in the cartridge.