Konica Minolta A00F011 Service Manual - Page 47
Operation
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magicolor 4650EN magicolor 4650DN Composition/Operation 7. Write section Theory of operation Ver.1.0 Nov. 2007 7.2 Operation 7.2.1 Overview • Four semiconductor lasers provided, one for each of the four different colors. A single polygon motor is used to make a scan motion. • Each photo conductor is irradiated with a laser light so that an electrostatic latent image is formed on it. 7.2.2 Laser exposure process 1. The laser light emitted by each of the semiconductor laser/Y, M, C, and K is reflected onto the polygon mirror via the synthetic mirror. 2. Since the angle of incidence for each color of laser light varies, the laser light reflected by the polygon mirror is reflected at a different angle for each color. 3. The condensing angle of each color of laser light is corrected by the G1 lens before reaching each return mirror. 4. The K laser light is condensed on the surface of the photo conductor through the separation mirror and G2 lens. 5. The Y, M, or C laser light is condensed on the photo conductor through the separation mirror, G2 lens, and return mirror. Index sensor SOS lens G1 lens Polygon mirror Semiconductor laser Y M C K Synthetic mirror Photo conductor Y Separation mirror Y M K C Return mirror/1st M C K Return mirror/2nd Y G2 lens M Y C K MC K 4138to2502c0 12