Copying machine capable of copying plural reproduced images from single original on a same copying paper and copying process thereof

摘要

A copying machine which is capable of copying a single original in the plural form on a copying paper having a size larger than that of the original and a copying process thereof. The first scanning of the single original is performed plural times to form a plurality of electrostatic latent images on a photosensitive material, said images being spaced by an interval equal to the length L which extends in the sub scanning direction of the single original or by an interval L longer than the length, thereby developing the electrostatic latent images with a toner. The resultant toner images are transferred to the copying paper in accordance with the first transfer operation. The second scanning of the original is next performed plural times while delaying a time alone corresponding to the length L which extends in the sub scanning direction of the original image so as to form plural electrostatic latent images with the interval L being left therebetween in the same manner as defined above, whereby the last-mentioned electrostatic latent images are developed with the toner. Each of the resultant toner images is transferred between the toner images formed previously on the copying paper to form consecutive plural reproduced images. Since a transfer charger is actuated in unison with the time when each of the toner image is brought to a transfer position and the icrease in charges on the copying paper is controlled, satisfactory reproduced images can be obtained.