G - Physics – 03 – G
Patent
G - Physics
03
G
314/27
G03G 15/04 (2006.01) G03B 27/34 (2006.01) G03G 15/041 (2006.01)
Patent
CA 1105072
ABSTRACT OF THE DISCLOSURE The disclosure describes a variable magnification optical mechanism in an image forming apparatus in which a varied image at a selected magnification of an original image is formed. A photosensitive body on which the varied image is exposed is moved at a definite speed (v) irrespective of the selected magnification (m) and optical means for transmitting the image of the original to the photosensitive body is driven at a speed ratio of v/m. the pre-running length (?) of the optical means is changed in accordance with the selected magni- fication (m) at a ratio of ?/m so that coincidence of the original image and the variation image formed therefrom may be attained every time.
266887
Kasamura Toshirou
Sato Tadashi
Suda Masashi
Tanaka Hidetoshi
Torigai Akiyoshi
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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