G - Physics – 03 – G
Patent
G - Physics
03
G
314/28, 88/96.2
G03G 15/041 (2006.01)
Patent
CA 1252325
-1- ABSTRACT A multiple magnification mode copying apparatus includes a full and half rate scanning mirror system and a lens for forming an image of an object to be copied. The lens may be shifted along its optical axis to any one of a plurality of predetermined positions to change the magnification mode of the apparatus, and at the same time shifted transversely of the optical axis by the appropriate amount for each of said predetermined positions in order to maintain one edge of the image adjacent one edge of the copy regardless of the magnification mode. The half rate mirror system is also shifted so as to achieve the required conjugate lengths. The means for shifting the lens comprises a first cable and pulley system, and the means for shifting the half rate mirror system comprises a second cable and pulley system, the two cable and pulley systems being driven by a single driving means. The single driving means drives the cable of the first cable and pulley system, and the cable of the first cable and pulley system drives an interconnecting shaft. The cable of the second cable and pulley system is driven, for shifting the half rate mirror system, by the interconnecting shaft.
437052
Sim & Mcburney
Xerox Corporation
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