Konica Minolta Business Technologies, Inc.

Naoki Nozaki

Tomoo Sakimura

Teruo Sasaki

Mayuko Matsusaki

Mayuko Ushiro

Shinchi Hamaguchi

Reduced are interferential streaks in a halftone image, which are produced when using a cylindrical photoreceptor conductive substrate having been subjected to tool bit cutting processing, and provided are an electrophotographic photoreceptor capable of obtaining high image quality in response to a light printing field or the like and an image forming method employing the electrophotographic photoreceptor. Disclosed is an electrophotographic photoreceptor possessing a cylindrical substrate having been finished via cutting processing and provided thereon, a photosensitive layer, wherein among peaks other than at a lag of 0 in a correlogram of a substrate surface profile in a direction along a central axis of the substrate, a mean value from a maximum peak in height to a third peak in height is 0.3-0.8, each of the peaks in height corresponding to an autocorrelation coefficient.

Electrophotographic photoreceptor and image forming method

Reduced can be interferential streaks produced in a halftone image when using a photoreceptor support (also called a drawn tube) having been subjected to tool bit cutting processing, and provided can be an electrophotographic photoreceptor capable of obtaining high quality in response to the light printing field or the like and an image forming method employing the electrophotographic photoreceptor. Also disclosed is an electrophotographic photoreceptor possessing a cylindrical support and provided thereon, a photosensitive layer, the cylindrical support possessing a processing profile regularly formed along a central axis, provided on a circumferential surface of the cylindrical support, wherein the processing profile satisfies Formula 1: Formula 1 &#x394;L&#x2267;10 &#x3bc;m, where &#x394;L, represents a difference between a processing period width and another processing period width in a central axis direction of the cylindrical support in an image region.

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Tokyo, Japan

Naoki Nozaki