| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a development device and an image forming device for conveying a developer after sufficiently charging the developer while suppressing the stress occurring in the developer. <P>SOLUTION: In a development device 200 including a development tank 201 and a development roller 204, an inner space of the development tank 201 is partitioned into a first conveyance path P, a second conveyance path Q, a first communication path R, and a second communication path S with a partition wall 207. A first developer conveyance unit 202 for conveying the developer in the development tank 201 in a conveying direction X is provided in the first conveyance path P, and a second developer conveyance unit 203 for conveying the developer in the development tank 201 in a conveying direction Y is provided in the second conveyance path Q. The first developer conveyance unit 202 is composed of a first spiral blade 202a and a rotary cylinder 202b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
