Management device that manages image forming apparatus

A management device configured to manage a plurality of image forming apparatuses through a network, the management device comprising:

• a communication device that makes communication with outside, through the network;
• an input device that receives an input of first information indicating a type of an optional function provided in the image forming apparatus, second information necessary for issuing a license key for the optional function, third information indicating an address of the image forming apparatus, and fourth information necessary for logging in to the image forming apparatus;
• a requester that transmits an instruction requesting to issue the license key, by transmitting the second information via the communication device, to a predetermined license key issuing source that issues the license key for the optional function of the type indicated by the first information;
• and
• a transmitter that logs in to the image forming apparatus corresponding to the address indicated by the third information, by transmitting the fourth information via the communication device, and transmits the license key, received from the license key issuing source in response to the instruction of the requester, to the image forming apparatus.