an image forming apparatus includes a feeder means and a recorder . the feeder feeds a sheet of recording paper to a predetermined position in response to a spare paper feed signal instructing the feeding as the sheet of recording paper to the predetermined position preliminarily , and then feeds the sheet of recording paper being stopped at the predetermined position again in response to a record request signal . the recorder records an image on the sheet of recording paper fed by the feeder means through an electrophotographic process . the recorder means starts preparation to execute the electrophotographic process upon receiving the spare paper feed signal . as a results , throughput is increased without causing other problems .