| 摘要 |
An image forming apparatus includes a photosensitive drum chargeable by a charging device; a developing device for developing an electrostatic image formed on the drum, wherein the developing device includes a carrying member for carrying and conveying toner to a position where the toner opposes the drum and a screw; a transfer device for transferring a toner image formed on the drum; an exposure device for lowering a potential of the drum by exposing the drum to light; and a controller for effecting, in a period in which the screw is rotated to supply the toner to a portion of the carrying member where the toner is not carried, such a control that the toner is not moved from the carrying member to the drum by electrically charging the drum and that an exposure amount of the drum is smaller than an exposure amount during image formation.
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