The invention relates to a large-format scanning system (1) comprising at least two image acquisition elements (2) in a cascade arrangement, at least one platen, preferably a glass plate (3), arranged upstream thereof, and at least two reflector rolls (5) arranged opposite the at least two image acquisition elements (2) in a cascade arrangement, said reflector rolls being pressed against the glass plate (3) and/or a copy (4) to be scanned by means of resilient elements (6) that are arranged at the sides of the reflector rolls (5). According to the invention, the side portions (7) of the reflector rolls (5) are designed such that they touch the glass plate (3) only outside the reading area of the image acquisition elements (2) for the copy to be scanned (4) and that the copy to be scanned (4) rests on the glass plate (3) in the center area (8) of the reflector rolls (5).