A fixing apparatus comprises a fixing belt held by and wound around a heating roller and a fixing roller, a pressurizing roller held pressed against the fixing roller by way of the fixing belt so as to heat and put pressure on the toner image on a sheet of paper with the fixing roller, a releasing member that releases the sheet of paper adhering to the fixing belt from the fixing belt during the fixing process, and a guide body that guides the sheet of paper along the fixing belt and causes the sheet to stick to and be conveyed by the transfer belt, without being released by the releasing member, along the fixing belt, so as to release the sheet of paper at a position where the fixing belt is held by the heating roller with a small radius of curvature.