An image forming apparatus is disclosed, including a fixing device and a sheet storing member. The fixing device performs both tentative fixing and regular fixing. In at least one embodiment, the fixing device performs tentative fixing for tentatively fixing a toner image on a recording sheet. Further, the fixing device performs regular fixing for further fixing the tentatively fixed toner image by contacting a gloss sheet onto the tentatively fixed toner image on the recording sheet. The sheet storing member temporarily stores the recording sheet bearing the tentatively fixed toner image before the recording sheet is sent to the fixing device for the further fixing.