An image forming device, comprising: an image formation unit configured to form an image on a recording medium in accordance with a print command transmitted from an external device; a print history writing unit configured to record print history concerning image formation by the image formation unit in a server connected to the image forming device via a network; and a writing information transmission unit configured to transmit, to the external device, writing information including information indicating whether the print history writing unit has successfully recorded the print history in the server.