| 摘要 |
PURPOSE:To delete the optional part of an original picture and to confirm the deleting scope by irradiating the spot light to the orignal picture, designating the deleting scope and deleting the charge of the deleting scope at the time of forming the picture. CONSTITUTION:The luminance of the spot light from a spot light source 131 is the one which can transmit the original on an original platen 2. When the operating key is pushed down, a pulse motor 135 is driven, the light source 131 is shifted in the X direction of an arrow, the pulse motor not shown in the figure is driven and the light source 131 is shifted in the Y direction. Consequently, while the operator visually watches the spot light by the light source 131 to transmit the original, the deleting scope is designated. The position on the original picture of the spot light is detected by counting the number of the driven pulse of the pulse motor. By the deleting array arranged approximate to the photosensitive body drum at the time of forming the picture, the charge corresponding to the detected deleting scope is deleted and the unnecessary part of the original is deleted. |
