| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device, etc., having a screw shape which effectively prevents variations in screw pitch. <P>SOLUTION: The developing device supplies developer to a developing sleeve by rotating a screw and develops a latent image formed on a photoreceptor drum with developer. The screw has a spiral vane 15 around a rotary shaft 12. The vane 15 is formed so that an angle between the axis of the rotary shaft 12 and a vane face is ≤60°. <P>COPYRIGHT: (C)2004,JPO |
