According to this invention, the original cassette accommdates the color originals having difference sizes The original cassette is mounted on an original board. Plane scanning is carried out without causing flare by use of an image sensor in accordance with a transmissive method or a
A method and device for obtaining, by rapid and accurate calculation, a black-printer amount and a under-color amount to be removed in order to reproduce colors which are required on the prints. According to this invention, there is provided an under-color removal method and the device
For recording an image on a photosensitive material with the employment of a liquid crystal device, the device used therein is conventionally constructed so as to modulate an amount of light rays transmitted therethrough or reflected thereby commonly by the control of an amount of el
Unevenness of luminance of a plurality of phosphors on a screen provided in the front end of an electron gun type fiber optic cathode-ray tube is corrected by first measuring luminance distributions at positions of picture elements of a picture to be scanned on the respective phosphors
