A method of controlling an image forming apparatus having at least one consumption part. The method includes fetching specification information corresponding to the at least one consumption part, detecting whether control information for controlling a printing operation of the image forming apparatus according to the specification information is present in a memory of the image forming apparatus, storing the specification information of the at least one consumption part and the control information about the printing operation into the memory of the image forming apparatus when the control information is not present in the memory, and controlling the printing operation of the image forming apparatus according to the control information stored in the memory of the image forming apparatus.