A sheet P on which an image of a developer is unfixed is recovered from a transfer unit 6 to a sheet recovery portion 64, the sheet P is bent with the surface of the sheet P on which the image of the developer has been transferred facing inward and, while remaining bent, the sheet P drops downward between an outer guide plate 72 and a transfer convey belt 51, then an openable cover 74 is opened to remove the sheet P.