Photocopying – Contact printing – Light boxes
Patent
1994-02-23
1996-01-23
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355228, 355271, 355326R, G03G 1508
Patent
active
054869021
ABSTRACT:
The present invention relates to an apparatus for forming color toner images on an electrophotographic photosensitive member and for transferring the color toner images onto a transfer member, in which the vibration is prevented from acting on the photosensitive member during a latent image corresponding to each color image is formed, thereby improving the image quality. That is to say, when a peripheral length of the transfer member is L.sub.1, a distance between a light illuminating position of the light information illuminating means on the photosensitive member and a transfer position of the transfer member is L.sub.2, and a length of a maximum image formed on the transfer member is L.sub.3, a relation (L.sub.1 -L.sub.3)>L.sub.2 is established, thereby preventing the vibration from acting on the photosensitive member.
REFERENCES:
patent: 4772916 (1988-09-01), Mochida
patent: 4851960 (1989-07-01), Nakamura et al.
patent: 4888621 (1989-12-01), Ohno
patent: 4912515 (1990-03-01), Amemiya et al.
patent: 5132736 (1992-07-01), Muramatsu et al.
patent: 5683167 (1992-01-01), Fukushima et al.
Canon Kabushiki Kaisha
Dang T. A.
Grimley A. T.
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