| 摘要 |
PURPOSE:To enable the simultaneous emission of different spectrum beams and to make it possible to extremely reduce driving energy by wt. reduction, by simultaneously exposing an image sheet to beams having wavelengths different corresponding to color signals in a dot form. CONSTITUTION:An optical fiber array tube 1 consists of three rows of optical fiber arrays emitting beams having wavelengths lambda1, lambda2, lambda3 allowing photosensitive bodies of cyan 1a, magenta 1b and yellow 1c to develop colors. When a cyan signal, a magenta signal and an yellow signal are inputted to a solenoid driving circuit, opposed beam blocking wires retract and spectrum beams having wavelengths lambda1, lambda2, lambda3 are incident to the optical fiber array tube 1 through beam paths. These spectrum beams irradiate an image sheet 12 from the optical fiber array tube by an optical cable 7. When an exposing head 5 scans the image sheet 12 from one end thereof to the other end thereof in synchronous relation to an optical signal, the image sheet 12 is fed to the direction shown by an arrow A. Spectrum beams are allowed to irradiate the image sheet 12 on and after while said sheet 12 is moved to obtain a color image.
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