Photocopying – Contact printing – Light boxes
Patent
1988-06-17
1989-08-01
Moses, R. L.
Photocopying
Contact printing
Light boxes
355274, 355219, 355229, 355221, G03G 1500
Patent
active
048537365
ABSTRACT:
There is provided an image-forming device including: a photosensitive member having a photosensitive layer including an organic photoconductive material, a charging devices, an image exposure devices for exposing the pre-transfer material to form a latent image, a developing devices for developing the latent image with a toner to form a transferable toner image on the surface of the photosensitive member, a pre-transfer exposure devices for exposing the photosensitive member carrying the toner image, and a transfer devices for transferring the toner image to a transfer material; the charging devices, image exposure devices, developing devices pre-transfer exposure devices, and transfer devices are disposed in this order along the moving direction of the photosensitive member; wherein the light from the pre-transfer exposure devices is scattered light and the intensity of the scattered light is two or more times that of the light used for the image exposure. Such an image-forming devices can stably transfer a toner image from a photosensitive member to a transfer material and can provide an image of good quality without a ghost image.
REFERENCES:
patent: 4348098 (1982-09-01), Koizumi
patent: 4364661 (1982-12-01), Landa
patent: 4477176 (1984-10-01), Russel
patent: 4538901 (1985-09-01), Soumiya
patent: 4669854 (1987-06-01), Ichikawa et al.
Goto Koji
Sakakibara Teigo
Canon Kabushiki Kaisha
Moses R. L.
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