Lexmark C510 Service Manual - Page 66
Details of the optical system, The Optical printhead unit consists of following parts
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5021-0XX Details of the optical system In the optical system process, the printer utilizes a semiconductor laser diode as a light source. This laser diode is controlled by fast switching which matches the transmitted image data (video signal). The generated laser light scans the OPC belt through a polygon mirror and lens. The electrostatic latent images are formed on the OPC belt. The Optical printhead unit consists of following parts: No. Description 1 PD: photo detector 2 Polygon mirror: hexahedral mirror that reflects the laser beam 3 Cylinder lens: laser beam condenser 4 Laser unit: laser diode light emitting source 5 LDC: laser diode control circuit 6 BTD mirror: beam timing detector mirror to guide the laser beam to PD 7 Scanner motor: rotates the polygon mirror 1-40 Service Manual
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