Photocopying – Projection printing and copying cameras – Original moves continuously
Patent
1982-06-01
1984-12-11
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Original moves continuously
355 77, G03B 2748, G03B 2750
Patent
active
044875010
ABSTRACT:
An original to be copied is placed in a given position. An exposure optics including a movable part is employed to focus an optical image of slitwise segment of the original on a photosensitive member. The photosensitive member moves in a given direction and at a given speed throughout the exposure. The location where the image of slitwise segment of the original is focused moves through the space of the arrangement at a given speed and in a direction opposite from the direction of movement of the photosensitive member throughout the exposure. Consequently, the location corresponding to the initiation of the exposure is situated downstream as viewed in the direction of movement of the surface of the photosensitive member while the location corresponding to the end of the exposure is situated upstream as viewed in the same direction. Upon termination of the exposure, the photosensitive member continues its movement which is the same as during the exposure while the movable part of the exposure optics returns to its start position.
REFERENCES:
patent: 3687545 (1972-08-01), Moorhusen
patent: 3694076 (1972-09-01), Weber
patent: 4118118 (1978-10-01), Barto, Jr.
patent: 4390269 (1983-06-01), Henmi et al.
Hirakura Koji
Imai Chikara
Koizumi Yutaka
Suzuki Shigeru
Yanagawa Nobuyuki
Ricoh & Company, Ltd.
Shoup Guy W.
Wintercorn Richard A.
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