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AssigneeRicoh Company, Ltd.
InventorsNaoshi Mishima, Toshio Fukagai, Kiyoshi Taniguchi, Hiroyuki Kishi, Tomohiro Inoue, Yoshiaki Kawasaki
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An electrophotographic image formation method using an electrophotographic photoconductor composed of an electroconductive support, and a photoconductive layer including a charge generation layer and a charge transport layer which are successively overlaid on the support, having the steps of charging the surface of the electrophotographic photoconductor uniformly to a predetermined polarity, exposing the charged surface of the photoconductor to light images to form electrostatic latent images thereon, developing the electrostatic latent images to visible toner images by a developer, transferring the toner images to an image-receiving medium, and cleaning the surface of the photoconductor, with the concentration of ozone in the ambient atmosphere around the photoconductor being controlled in the range from 5 to 50 ppm, and the abrasion of the photoconductive layer being controlled to 300 .ANG. or less per 1000 revolutions of the photoconductor.
An electrophotographic image formation method using an electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer comprising a charge generation layer and a charge transport layer which are successively overlaid on said support, comprising the steps of:
Dependencies are inferred from the claim text.