| 摘要 |
PURPOSE:To obtain a high resolution image at high speed without any cross talk in coloring by a method wherein spectral division is performed by using a means which divide a white laser beam spectrally, and a latent image is formed on photosensitive paper by selectively irradiation via a shutter mechanism. CONSTITUTION:A white laser beam 2 emitted from a white laser light source 1 is divided spectrally into a blue laser beam 2a, a green laser beam 2b, and a red laser beam 2c with a beam splitter 3. The spectrally divided beams go into respective shutters 11, and ON/OFF control is performed. Each blue, green, and red laser beam is directed to each polygon mirror 4 to be reflected. The polygon mirror 4 is rotated at high speed by a scanner motor 5, and each laser beam is reflected being deflected in a photosensitive paper 14 direction. A ftheta lens 6 focuses scanned laser beam 7a-c of respective colors on the photosensitive paper 14. The photosensitive paper 14 on which a latent image is formed after ending exposure is sent to a heat developing roller 10. It is color developed and is cut to a specified size by a cutter 12. |
