| 摘要 |
<p>A latent electrostatic image developing device comprising a developer receptacle (16) for holding a developer composed of carrier particles and toner particels, a developer applicator means (18) for holding part of the developer in the developer receptacle (16) on its surface and carrying it to a developing zone (34), a developer agitating means (46), a toner particle receptacle (88) for holding toner particles (86) and a toner particle feed means (92) for feeding the toner particles from the toner particle receptacle (88) to the developer receptacle (16). The developer agitating means (46) has a plurality of agitating blades (52) extending in the widthwise direction, and a cut (56) is formed in at least some of the agitating blades. The developing device also has a developer detector (80) for detecting the concentration of the developer, and the developer detector (80) detects the concentration of the excess of the developer removed from the developer applicator means. The developing device also has a partitioning plate (70) for conducting the excess of the developer removed from the developer applicator means (18) to the agitating means (46). The agitating means (46) moves the developer from one side toward the other side, and the partitioning plate (70) moves the developer removed from the developer applicator means (18) form said other side toward said one side.</p> |
