Gas separation: apparatus – Magnetic separating means
Patent
1975-12-23
1977-08-30
Moses, Richard L.
Gas separation: apparatus
Magnetic separating means
118DIG23, 118647, 355 10, 355 14, 427 17, G03G 1500
Patent
active
040452174
ABSTRACT:
The developing process is for use in an electrophotographic copying machine of the wet developing type in which a developing electrode arrangement is maintained in intimately opposing relationship with a cyclically moving endless photosensitive surface carrying an electrostatic latent image on a circumferential surface portion thereof. The remaining portion of the endless surface is charged at a certain potential having a polarity opposite to that of the latent image. A potential on the electrode arrangement is maintained below a predetermined value during the time the latent image carrying surface portion is passing thereby, to achieve correct development, whereas it is charged by a bias potential, lower than the potential previously applied, while the remaining surface portion passes thereby during the remaining time for one cycle of the endless surface. Thereby an accumulation of toner on the electrode arrangement is prevented and hence fogging of the developed image caused thereby is also prevented.
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Endo Katutoshi
Fujimura Itaru
Moses Richard L.
Ricoh & Company, Ltd.
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