| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanner reduced in an electric noise at the time of image reading. SOLUTION: The light flux radiated from semiconductor lasers 1 and 2 is synthesized into a common optical path by a synthetic mirror 3, reflected, deflected by a polygon mirror 4 and converged by an fO lens 5 and that converged light flux is made incident to a separation mirror 6. In this case, the light flux radiated from the semiconductor laser 1 is made incident to the image forming plane of a photoreceptor 7 and the recording of image is performed. Besides, the light flux radiated from the other semiconductor laser 2 is made incident to the reading plane of an original 8, and then the reflected scattered light is detected by photoelectric transducers 31-33. Then, an photoelectric transducer selecting means 10 outputs signals to an adder circuit 11 while successively switching and selecting the photoelectric transducers 31-33, and the signal added by the adder circuit 11 is inputted to a CPU 14 as the image information on the original 8. |
