| 摘要 |
<p>An image forming apparatus includes a body, an image developing unit including a frame having a developer supply part into which developer is introduced, a developing roller rotatably installed on a developing roller support part provided in the frame, and a developer supply auger (50) mounted in the developer supply part so as to provide the developing roller with the developer and formed with a reduction part (53) having a reduced circumferential width, and an image transferring unit to transfer a visible image formed in the image developing unit onto a printing medium. The developer supply auger is installed on the frame such that the reduction part is positioned corresponding to the developing roller support part. An interval between central axes of the developing roller and the developer supply auger becomes narrow, so that a developer is stably supplied to the developing roller.
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