Samsung Electronics Co., Ltd.

Ji-uk Kim

Seung-ju Kim

Ji-Young Lee

Kyung-yol Yon

Beom-jun Kim

Saburo Yokota

Hwan-koo Lee

Moto Makino

Provided is a photoreceptor having an appropriate surface frictional force that enables a cleaning angle, at which the slipping between the surface of the photoreceptor surface and the blade is prevented and the overturning and vibrating of the blade are prevented, to be easily obtained.

Electro-photographic photoreceptor and image forming apparatus including the same

Provided is a laminate type electrophotographic photoreceptor including an electrically conductive substrate, and an undercoat layer, a charge generation layer, and a charge transport layer sequentially disposed on the electrically conductive substrate, in which a characteristic response time of the photoreceptor is about 10 msec or more and about 85 msec or less and a thickness of the charge transport layer is greater than about 18 &#x3bc;m and equal to or less than about 45 &#x3bc;m. Also, an electrophotographic image forming apparatus and an electrophotographic cartridge using the electrophotographic photoreceptor are provided. An electrophotographic photoreceptor according to the present general inventive concept has an improved response time and thus, charge stain characteristics are excellent even when a thick charge transport layer is selected. Therefore, the electrophotographic photoreceptor of the present general inventive concept may have both excellent lifetime characteristics and excellent charge stain characteristics.

Electrophotographic photoreceptor having excellent lifetime characteristics and charge uniformity, and electrophotographic image forming apparatus and electrophotographic cartridge using the electrophotographic photo receptor

A two-layered electrophotographic photoreceptor is formed. The two-layered electrophotographic photoreceptor includes an electrically conductive substrate and a charge generating layer and a charge transporting layer form on the electrically conductive substrate, wherein the charge generating layer is a naphthalenetetracarboxylic acid diimide derivative represented by:  The two-layered electrophotographic photoreceptor has high photosensitivity and low residual potential.

Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives as electron transport materials in charge generating layer and the electrophotographic imaging apparatus using the photoreceptor

Growing community of inventors

Suwon-si, South Korea

Ji-uk Kim