| 摘要 |
PURPOSE:To provide a method for making image with high reliability in the stage of exposing a pattern on a photoreceptor, by stopping the scanning movement of a scanning for exposing, moving the photoreceptor at a prescribed speed and making the image. CONSTITUTION:The constitution of the part relating to the patterned image of the case in which a P sensor method is adapted to an electrophotographic copying machine of a scanning type for exposing with a moving original and a static optical system is illustrated. A sensor pattern 2 having a reference density is provided in contact with the position 1a at the forward end of the image on contact glass 1 on which an original is placed. A photosensitive drum 7 is rotated at a prescribed speed but a scanner 3 is held stopped in the stage of exposing said pattern 2 on the drum 7. While the scanner is held stopped, the light corresponding to the density of the pattern 2 is irradiated on the drum 7, and a belt-like light image is formed on the drum 7 at the length corresponding to the length of the pattern 2 in the axial direction thereof and at the length determined by the slit width in the circumferential direction of said drum. |
