Color image recorder

Abstract

Abstract PURPOSE:To prevent the deterioration in the image quality in a character region and to execute faithfully color display by discriminating the character region and picture region from an original having the multi-color superposed images and printing the detected character region in a single color. CONSTITUTION:The laser beam 1 from a laser oscillator 2 is modulated 3 by the light reflected from an original and forms an image via a color filter 5' on a uniformly electrostatically charged 9 photosensitive drum 7 by a lens 4 and a rotary reflecting mirror 5. The electrostatic latent images of black, cyan, magenta and yellow colors are formed by replacing successively the filter 5' under control of a control part 15. The latent images are toner-developed by corresponding developing machines 10a-10d and are transferred to the paper from a paper feed tray 13, by which the images are fixed 42. The paper is then discharged to a discharge tray 14. A CPU discriminates the signal waveform inputted to an original scanning part 17 so that the signal having intensive undulations with respect to a reference level is discriminated as a character and that the signal having a small change is discriminated as a picture region. The character is developed by the black toner and the picture by the various color toners. The color display is thus faithfully executed.

Inventors

• 👤 Keita Nakano
• 👤 敬太 中野

Bibliographic Details