| 摘要 |
<p>The present invention provides an electrophotographic photoreceptor that not only can exhibit enhanced rotational accuracy and rotational strength when used in an actual machine but also is excellent in terms of production cost, by improving the driving force transmission portion of the flange. The electrophotographic photoreceptor is used by being detachably mounted onto an apparatus main body of an electrophotographic application apparatus while being incorporated in a process cartridge. The electrophotographic photoreceptor has: a photosensitive drum (2) formed by forming a photosensitive layer containing a photoconductive material on an outer circumferential surface of a cylindrical conductive substrate; and a gear flange (1) or a flange that is fitted to an open end of the photosensitive drum and transmits a rotational driving force from the apparatus main body to the photosensitive drum (2). In the gear flange (1) or flange, on a surface thereof receiving the rotational driving force, a driven-side power transmission portion (5) that is configured by a cylindrical body (3) disposed concentrically with respect to a central shaft of the photosensitive drum (2), and three hemispherical engaging projections (4) are provided.</p> |
