Electrophotographic photosensitive member having no fatigue effe

Details Electrophotographic photosensitive member having no fatigue effe Electrophotographic photosensitive member having no fatigue effe

1977-05-18

1980-05-13

Martin, Jr., Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 60, 430 67, 430 84, 430 85, 427 76, G03G 508, G03G 5082

Patent

active

042029376

ABSTRACT:
An electrophotographic photosensitive member having an insulating layer overlaid on the one side of an amorphous photoconductive layer is characterized in that said photosensitive member further comprises two layers: a charge injection layer and a subsidiary charge injection layer overlaid on the other side of the photoconductive layer with the subsidiary charge injection layer being interposed between the photoconductive layer and the charge injection layer, said subsidiary charge injection layer having a lower free charge density than that in the photoconductive layer and being able to make it easy to inject an amount of electric charge from the charge injection layer into the photoconductive layer whereas said charge injection layer has a higher free charge density than that in the photoconductive layer and serves as a main supply source of the electric charge to be injected into the photoconductive layer.

REFERENCES:
patent: 2962376 (1960-11-01), Schaffert
patent: 3653064 (1972-03-01), Inoue et al.
patent: 3655377 (1972-04-01), Sechak
patent: 3708291 (1973-01-01), Kinoshita et al.
patent: 3966512 (1976-06-01), Nonaka
patent: 4021375 (1977-05-01), Moore
patent: 4026703 (1977-05-01), Hayashi et al.

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