ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC DEVICE

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor, a process cartridge having the electrophotographic photoreceptor and an electrophotographic device for reducing a streak-like image defect occurring due to low-speed printing mode output under a hot and humid environment and suppressing burdens on a cleaning blade.SOLUTION: Provided is a cylindrical electrophotographic photoreceptor, where the electrophotographic photoreceptor has multiple rows of groove formed on the circumferential surface of the electrophotographic photoreceptor, and a rugged shape continuous in the axial direction of the electrophotographic photoreceptor resulting from the plurality of grooves is such that, in an axial cross section of the electrophotographic photoreceptor, a line segment linking the peak of the rugged shape and an adjacent bottom point protrudes from a virtual straight line linking the peak of the rugged shape and the adjacent bottom point. When the width between the adjacent peaks of the rugged shape is assumed to be w (μm), w is 30 μm to 100 μm inclusive, and when the depth from the peak of the rugged shape to the adjacent bottom point is assumed to be d (μm), d is 1 μm to 5 μm inclusive.SELECTED DRAWING: None 【課題】高温高湿環境下での低印字モード出力により生じるスジ状の画像欠陥を低減し、クリーニングブレードへの負荷を抑制する電子写真感光体、該電子写真感光体を有するプロセスカートリッジ及び電子写真装置を提供する。【解決手段】円筒状の電子写真感光体において、該電子写真感光体は、該電子写真感光体の周方向に沿った溝が表面に複数並んで形成されており、複数の該溝に由来する、該電子写真感光体の軸方向に連続した凹凸形状は、該電子写真感光体の軸方向断面において、該凹凸形状の頂点とその隣の底点とを結ぶ輪郭の線分が、該凹凸形状の頂点とその隣の底点とを結ぶ仮想直線よりも突出している形状であり、該凹凸形状の隣り合う頂点間の幅をｗ（μｍ）としたとき、ｗは３０μｍ以上１００μｍ以下であり、該凹凸形状の頂点からその隣の底点までの深さをｄ（μｍ）としたとき、ｄは１μｍ以上５μｍ以下である電子写真感光体。【選択図】なし