IMAGE FORMING APPARATUS

To provide a mechanism that achieves a reduction in amount of toxic substances and prevents a dew condensation image.SOLUTION: An image forming apparatus 1 is an apparatus that is capable of single-sided printing and double-sided printing, and comprises: a recording medium ejection unit (paper ejection unit 5) having a recording medium exit (paper ejection exit 51) that ejects a recording medium to the outside of the image forming apparatus 1, and a recording medium inversion gateway (paper inversion gateway 52) that ejects part of the recording medium to the outside of the image forming apparatus 1 in order to invert the recording medium during double-sided printing; a suction duct (outside air suction duct 4) having a suction port (suction duct intake port 41) that sucks in air; blowing means (blowing means 42) that is provided in the suction duct and sucks in the air from the recording medium ejection port to the suction port; and a pair of rotating members (double-sided inversion roller 33a, double-sided inversion roll 33b) that are provided between at least one of the recording medium exit and recording medium inversion gateway and the suction port, and invert the front and back of the recording medium during double-sided printing.SELECTED DRAWING: Figure 3 【課題】有害物質量の低減および結露画像の防止を実現させる機構を提供すること。【解決手段】画像形成装置１は、片面印刷および両面印刷が可能な装置であって、記録媒体を画像形成装置１の外へ排出する記録媒体出口（排紙出口５１）、および、両面印刷のときに記録媒体を反転するため記録媒体の一部を画像形成装置１の外へ排出する記録媒体反転出入口（用紙反転出入口５２）を有する記録媒体排出部（排紙部５）と、空気を吸引する吸引口（吸引ダクト吸気口４１）を有する吸引ダクト（外気吸引ダクト４）と、吸引ダクトに設けられ、記録媒体排出部から吸引口へ空気を吸引する送風手段（送風手段４２）と、記記録媒体出口と記録媒体反転出入口との少なくとも一方と、吸引口との間に設けられ、両面印刷のときに記録媒体を両面反転させる一対の回転部材（両面反転ローラ３３ａ、両面反転コロ３３ｂ）と、を備える。【選択図】図３