| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of keeping the distribution density of developer at respective parts inside a developer container nearly constant. <P>SOLUTION: The pitch of a blade part 40A on one end 40N side of a first screw 40 is set to be smaller than the pitch of the blade part 40A on the center part 40M side of the first screw 40, and the pitch of the blade part 40A on the other end 40L side of the first screw 40 is set to be larger than the pitch of the blade part 40A on the center part 40M side of the first screw 40. The pitch of a spiral blade part 42A on the other end 42L side of a second screw 42 is set to be smaller than the pitch of the spiral blade part 42A on the center part 42M side of the second screw 42, and the pitch of the spiral blade part 42A on one end 42N side of the second screw 42 is set to be larger than the pitch of the spiral blade part 42A on the center part 42M side of the second screw 42. <P>COPYRIGHT: (C)2008,JPO&INPIT |
