The present invention provides an image forming apparatus that is included in a system with a server that provides messages posted from a plurality of apparatuses to each of the plurality of apparatuses sequentially, and having an image forming device to form an image on a basis of output data. The image forming apparatus includes a message acquisition device that acquires a message provided by the server, a message determination device that determines a type of the acquired message, a message generator that generates the message on a basis of a status of the image forming apparatus in a case where the type of the message acquired is an output request, and a message posting device that posts the generated message to the server.