Electrostatic recording apparatus

Abstract

An electrostatic recording apparatus such as an electrophotographic copying machine includes a mobile light source being able to move reciprocatively and exposing an original copy at its forward going motion. Reflected light from the original copy exposed by the light source produces an image on a photosensitive drum through an image-forming lens, and an electrostatic latent image is formed on the photosensitive drum. This electrostatic latent image is developed with a toner to form a visible image, and the toner image is transferred onto a paper fed from a paper feeding part. Papers of different sizes can be fed from the paper feeding part, and in response to this paper size, data such as moving speed and moving distance of the light source are read from the ROM, being given to a motor controller. As a function of the paper size, different returning speed data are set in advance, and accordingly, the light source can return at a speed responding to the paper size. Furthermore, since the light source forms an image of different magnification from that of the original copy, it is moved at a different speed. When a different magnification is set, a moving speed data of the light source responding to its magnification is read from the ROM. Accordingly, the moving speed of the light source can be varied also in response to the magnification.