An image forming apparatus is provided. The image forming apparatus includes: function units with regard to image forming; a control unit configured to control the function units to simultaneously perform a first job and a second job when an execution command of the second job using one of first and second function units from among the function units is detected while the first job using one of the first and second function units is performed; and a communication interface unit configured to transmit data required for the second job to other apparatuses connected to the image forming apparatus to temporarily store the data in a repository of the other apparatuses.