The image forming apparatus comprises: an image forming section which includes an image forming device forming an image onto a recording medium; a plurality of recording medium supply sections which store recording media and supply the recording media to the image forming section; a conveyance device which conveys the recording media supplied from the plurality of recording medium supply sections; and an end timing control device which controls a timing at which the recording media of each of the plurality of recording medium supply sections come to an end, by controlling selection of supply source of the recording medium used for image formation by the image forming device, from among the plurality of recording medium supply sections.