| 摘要 |
PURPOSE:To form an excellent copy image easily and efficiently by discriminating the density of a specific area from the front end of an original image according to an original image front end signal, and controlling the image formation. CONSTITUTION:When a signal corresponding to the front end of an original image is impressed from an original front end sensor S, a microcomputer 7 performs interruption processing and discriminates the density of the original surface by original surface reflection signal detection outputs of a photosensor 1, etc., for respective areas obtained by dividing the time from the input of the image front end signal to the development of the front end image by a reference time. A high-voltage transformer 8 is controlled according to the discriminated results to optimize developing processing; and the need for a manual adjustment, etc., is eliminated, and an excellent image corresponding to the density of the original surface is formed easily and efficiently without any miscopying, etc. |
