Abstract: A reprographic apparatus (and its use) including an optical system, comprising an objective lens, for forming on a surface an image of an original and a device for selectively enabling a right-way-round image or an inverted image of such original to be produced on such surface, the device comprising a prism and a mirror alternatively interposable in the light path of the optical system.

Abstract: Machine for color reprography includes an exposure device and a support for the original, movable relative to one another. The exposure device includes an objective so constructed as to concentrate the light reflected by the original onto a photosensitive surface, the sweeping of the original being achieved by virtue of a reciprocating movement of the exposure device relative to the support for the original. The exposure device comprises an assembly of optical filters located in superposed filter-holder slides which are movable along a direction parallel to the sweeping movement, between two setting positions, one being a storage position not interposed in the light beam and the other being an operating position which cuts across this beam. The slides cooperate at one end of the sweep travel, with a stop device which pushes all the slides back into one of the setting positions. The stop device operates as a retainer which make it possible selectively to operate certain of the slides.