Abstract: In an image transfer type copying apparatus including an image exposure station having an exposure lamp for successively projecting an image of the original onto a photosensitive member, charging means disposed around the photosensitive member for charging the surface of the photosensitive member, a developing station for developing an electrostatic latent image, a transfer station for transferring the developed image onto a copying member and a cleaning station for cleaning the residual toner, the improvement consists of an erasing station for erasing unnecessary charges formed by the charging station which remains operative even after formation of the latent image. A controller energizes the erasing lamp while the exposure lamp is still lit with the exposure lamp being effectively energized even after completion of exposure of the image. The erasing station is energized when the trailing edge of the latent image reaches a position not influenced by the erasing operation.