Fuji Xerox Co., Ltd.

Toru Asahi

Takahiro Suzuki

Naoki Morita

Kenji Ikeda

Hidemi Nukada

Tomotake Inagaki

Koji Bando

Masaru Agatsuma

Hitoshi Takimoto

Kazuyuki Tada

Kenta Ide

Tomomasa Sato

An image carrier includes a conductive base material and a photosensitive layer formed on the base material. The photosensitive layer has an outermost surface layer that contains particles having a number-averaged particle sphericality represented by Formula (1) of approximately 0.7 or less: sphericality=4&#x3c0;A/L(1), where &#x3c0; represents the circular constant, A represents the projection area of the particle, and L represents the peripheral length of the projected particle image.

Image carrier, process cartridge and image-forming apparatus

The invention provides an electrophotographic photoreceptor having a cylindrical support, and a charge-generating layer and a charge-transporting layer on or above the cylindrical support, wherein the thickness of the charge-generating layer is increased from the central portion in the axial direction of the cylindrical support towards both end portions thereof, and the difference in thickness between the two end portions is 2.5% or less of an average thickness of the charge-generating layer. Also disclosed are a method of producing the electrophotographic photoreceptor, a process cartridge including the electrophotographic photoreceptor, and an image-forming apparatus.

Electrophotographic photoreceptor, method of producing the same, process cartridge, and image-forming apparatus

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Minami-ashigara, Japan

Toru Asahi