| 摘要 |
PURPOSE:To stabilize the quality of an image, by varying the conditions of image formation only in the range in accordance with the characteristics of a process kit. CONSTITUTION:When a knob 24 is moved along a slit 23, lamp applying voltage is varied to change the exposure of light and the density for copies are adjusted. A process kit 8 in which a photosensitive drum 2, charging device 3, developing device 5 and cleaner 7 are housed is attached to a copying machine main body 9 freely attachably and detachably in an arrow 22 direction. In case when the kit 8 is inserted, a movable range of the knob 24 is regulated by a hole 25 of a regulating plate 26. By selecting the position of the hole 25 properly, the variable range of an image forming condition is limited in accordance with the difference of characteristics of the process kit such as a color of toner and a sensitivity of a photoreceptor. |
