An image-forming device includes: an image-forming unit; a sheet discharge unit; a sheet support unit; a top cover; and a panel. The image-forming unit forms images on a recording sheet. The sheet discharge unit discharges, in a sheet discharging direction, a recording sheet formed with an image by the image-forming unit. The sheet support unit is disposed above the image-forming unit, and supports sheet discharged from the sheet discharge unit. The top cover is disposed above the sheet support unit so as to cover the sheet support unit with a underside surface of the top cover opposing a top surface of the sheet support unit. The top cover has a front side and a rear side in the sheet discharge direction, the front side being on a downstream side of the rear side in the sheet discharge direction. The panel is disposed on the front side of the top cover and includes at least one of a control unit and a display unit on the top thereof. An opening is formed between the panel and the sheet support unit through which the recording sheet can be retrieved. A top surface and a underside surface of the panel slopes downward from the rear side to the front side.