| 摘要 |
There is disclosed a developing device including a toner hopper, a toner supply source, a toner table on which a toner is laid, an agitator for carrying the toner to the toner table from the toner hopper, a magnet roller disposed above the toner table, a developing sleeve which covers an outer periphery of the magnet roller, holds a magnetic carrier, allows the toner of the toner table to be adsorbed onto the magnetic carrier, and shifts and attaches the toner to an electrostatic latent image of a photosensitive drum, a doctor blade disposed close opposite to the developing sleeve, and a developer returning member which is disposed between the developing sleeve and the toner hopper and is positioned in a position higher than a position of the toner table to prevent the toner cut/removed by the doctor blade from dropping toward the toner hopper and to return the cut/removed toner to the toner table, and which has a tip end displaced toward the developing sleeve from the boundary of the toner table and the toner hopper to form a space for carrying the toner by the agitator between the tip end and the toner table.
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