An image forming system includes an image forming apparatus configured to form an image and a server coupled to the image forming apparatus so as to be communicable with the image forming apparatus. The server includes a server storage unit configured to store a list of the identification symbol given to the consumable member, a server reception unit configured to receive the data regarding the identification symbol transmitted from the image forming apparatus transmission unit, a determination unit configured to determine whether or not there is an identification symbol corresponding to the data regarding the identification symbol received by the server reception unit in the list of the identification symbol stored in the server storage unit, and a control unit configured to, if the determination unit determines that there is the identification symbol, perform control to make the consumable member usable.