| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To inexpensively eliminate undesirable image memory when feeding and collecting a toner to a developing roller by a feed and collection member comprising a single member in a hybrid developing apparatus without causing an image defect due to carrier adhesion. <P>SOLUTION: The hybrid developing apparatus includes a sleeve part of the developing roller composed of a soft magnetic material. In the hybrid developing apparatus, the sleeve part of the developing roller is composed of the soft magnetic material, thereby eliminating the image memory without generating image defect such as white spots and stripe noise due to carrier adhesion throughout a life of the developing apparatus. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
