| 摘要 |
<p>A developing device which includes a housing including an opening toward a photosensitive drum, the housing containing a single-component toner, a developing roller disposed in the opening facing the photosensitive drum so as to transfer the toner to an image-forming area between the developing roller and the photosensitive drum, a porous plate disposed in the opening and kept in contact with the part of the developing roller which is positioned in the housing, the porous plate having pores of such a size so as to allow the toner to pass through, and a toner supply means for supplying the toner from the housing to the porous plate. <IMAGE></p> |
