Organic photoreceptor for electrophotography

Details Organic photoreceptor for electrophotography Organic photoreceptor for electrophotography

1998-01-14

1999-11-30

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 5805, 430 5845, 430 5875, 430 588, G03G 506

Patent

active

059940107

ABSTRACT:
An organic photoreceptor for electrophotography including a substrate which is electrically conductive; and an organic photosensitive layer which is formed on the substrate, which includes a photoconductive material, and which has a surface having a differential hardness corresponding to a 20 .mu.m or less change in width of a scratch formed on the surface for every 10 g change in vertical load during perpendicular loading with 10 g or more pressure on the surface when a test for evaluating differential hardness is performed by moving the photoreceptor to a predetermined position at a constant speed of 30 mm/minute under a load in a direction perpendicular to the surface through a conical indenter to make the scratch on the surface, which conical indenter is one of a sapphire or diamond conical indenter having a conical tip portion including an apex having a hemisphereical shape with a diameter of 0.01 mm and a conical angle of 90.degree..

REFERENCES:
patent: 4654288 (1987-03-01), Hiro et al.
patent: 4699865 (1987-10-01), Mitsuhashi

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