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Claim 1

IN A DOCUMENT REPRODUCTING APPARATUS WHEREIN A DOCUMENT DRUM HAVING A GRIPPER MECHANISM THEREON IS ROTATED TO CONVEY A DOCUMENT THROUGH A COPYING STATION FOR PROJECTING A LIGHT IMAGE OF THE DOCUMENT ONTO A MOVING PHOTOCONDUCTIVE SURFACE, THE IMPROVEMENT COMPRISING, A SUPPORT HAVING A SLOT EXTENDING LONGITUDINALLY THEREOF, SAID SUPPORT BEING POSITIONED AT SAID COPYING STAITION ADJACENT SAID DOCUMENT DRUM WITH SAID SLOT EXEXTENDING TRANSVERSELY TO THE PATH OF MOVEMENT OF THE PERIPHERAL SURFACE OF THE DOCUMENT DRUM, A FIRST SPRING SUPPORT MEANS CONNECTED AT ONE END TO THE FORWARD SIDE OF SAID SUPPORT IN RELATION TO THE DIRECTION OF ROTATION OF THE DOCUMENT DRUM, A SECOND SPRING SUPPORT MEANS CONNECTED AT ONE END TO THE OPPOSITE SIDE OF SAID SUPPORT WITH THE FREE END OF SAID SECOND SPRING SUPPORT MEANS BEING FLARED BACKWARD IN THE DIRECTION OF ROTATION OF THE DOCUMENT DRUM, SAID FIRST SPRING SUPPORT MEANS AND SAID SECOND SPRING SUPPORT MEANS BEING POSITIONED BETWEEN SAID SUPPORT AND THE DOCUMENT DRUM , SPRING GUIDES CONNECTED AT ONE END TO SAID FIRST SPRING SUPPORT MEANS WITH THE FREE END OF SAID SPRING GUIDES IN CONTACT WITH THE DOCUMENT DRUM, A PLATEN FRAME HAVING A SLOT EXTENDING LONGITUDINALLY THEREOF, A TRANSPARENT PLATEN SECURED TO SIAD PLATEN FRAME ENCIRCULING THE SLOT THEREIN, SAID PLATEN FRAME BEING MOVABLY SECURED TO SAID SUPPORT BY THE FREE END OF SAID FIRST SPRING SUPPORT MEANS AND BY THE FREE END OF SAID SECOND SPRING SUPPORT MEANS AND, A SLOTTED ILLUMINATING MEANS SIDEABLY SUPPORTED BY SAID SUPPORT IN POSITION OVER SAID TRNSPARENT PLATEN.