| 摘要 |
An object of the invention is to provide a photoreceptor drum exceedingly advantageous for obtaining clear images free from positional image shifting and image blurring. In the invention, a photoreceptor drum (12) is constituted of a drum main body (14) and a first and second flange member (16) and (18) to be attached respectively to both lengthwise-direction ends of the drum main body (14). The drum main body (14) is constituted of a cylindrical body (1402) and a photosensitive layer (1404) formed on the surface of the cylindrical body (1402), and the cylindrical body (1402) has a fitting hole (1406) formed in each end thereof. The first and second flange members (16) and (18) have cylindrical parts (1602) and (1802) to be fitted into and fixed to the fitting holes (1406) in the drum main body (14), and further have shaft support parts (1610) and (1810). The photoreceptor drum (12) has been formed so that the radial deflection thereof based on a central axis L connecting the centers of the shaft support parts (1610) and (1810) of the first and second flange members (16) and (18) is 15 µm or less. |
