| 摘要 |
PURPOSE:To prevent a black band from occurring because toner adheres to a photosensitive body or carrier from adhering at the time of starting and stopping image recording actions in an image recorder in which a reversal developing system developing device is used. CONSTITUTION:This action control method is as follows. At the time of starting the image recording actions, a main motor 16 for driving the photosensitive body 10 is driven and then developing bias is impressed on a developing roll 17 as soon as the photosensitive body 10 is electrostatically charged by an electrostatic charger 11. Thereafter, a motor 18 for developing device which drives the developing roll 17 is driven so as to make the developing device 13 in a development feasible state. At the time of stopping the image recording actions, the motor 18 is stopped to make the device 13 in a development unfeasible state, then the electrostatic charging by the electrostatic charger 11 is stopped. Thereafter, the main motor 16 is stopped and the photosensitive body 10 is stopped. At the time of starting and stopping the image recording actions, the area of the photosensitive body 10 which is not electrostatically charged is prevented from being developed by the developing device 13, and the black band is prevented from occurring because the toner adheres to the photosensitive body 10 or the carrier is prevented from adhering. |
