Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1979-03-23
1981-01-13
Moses, R. L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 3CH, G03G 1500
Patent
active
042446473
ABSTRACT:
In an image transfer type copying apparatus including an image exposure station having an exposure lamp for successively projecting an image of the original onto a photosensitive member, charging means disposed around the photosensitive member for charging the surface of the photosensitive member, a developing station for developing an electrostatic latent image, a transfer station for transferring the developed image onto a copying member and a cleaning station for cleaning the residual toner, the improvement consists of an erasing station for erasing unnecessary charges formed by the charging station which remains operative even after formation of the latent image. A controller energizes the erasing lamp while the exposure lamp is still lit with the exposure lamp being effectively energized even after completion of exposure of the image. The erasing station is energized when the trailing edge of the latent image reaches a position not influenced by the erasing operation.
REFERENCES:
patent: 3700328 (1972-10-01), Davidge et al.
patent: 3778148 (1973-12-01), Fujitsuka et al.
patent: 4113374 (1978-09-01), Nakamura et al.
Fujiwara Takao
Furukawa Yoshitaro
Minolta Camera Kabushiki Kaisha
Moses R. L.
LandOfFree
Erasing device for image transfer type copying apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Erasing device for image transfer type copying apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erasing device for image transfer type copying apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2228892