Variable magnification copying apparatus

Details Variable magnification copying apparatus Variable magnification copying apparatus

G - Physics

03

G

314/27

G03G 15/04 (2006.01) G03G 15/041 (2006.01) G03G 15/30 (2006.01)

Patent

CA 1107805

ABSTRACT OF THE DISCLOSURE A variable magnification copying apparatus includes optical scanning means for scanning an image original at a variable velocity in accordance with a copying magnification desired, a photosensitive drum movable at a predetermined velocity from an exposure station to an image transfer station, conveyor means for conveying copy medium to the image transfer station, detector means for generating a signal when the scanning means has scanned an edge of the image original or a portion thereof near the edge, and control means coupled to the detector means for controlling the conveyor means by the signal so as to ensure that the image of the original to be copied is positioned with its leading edge registered with the leading edge of the copy medium with respect to the direction of conveyance, irrespective of changes in magnification.

268031

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