COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 3 LASER EXPOSURE SYSTEM3-2 PT03-101-02 List of ComponentsF03-101-01 External ViewThe laser exposure system consists of the following major components:The machine uses a small-diameter, 12-facet polygon mirror, a lens constructionpossesing a large angle of radiation, and a single-beam laser, all with considerations to highspeed, low power, and low noise operation.ComponentsLaser semiconductorLaser scanner motor (M15)Polygon mirrorBD mirror/BD PCBLaser driver PCBDC controller PCBDescriptionVisible laser light (aboxut 660 nm), 1 beamDC motor, 2-speed control12-facetedDetects a laser beam.Controls laser activation.Controls laser scanner motor rotation.Collimator lensImaging lens 3Cylindrical lensBD mirror12-facetpolygon mirrorLaser unitLaser mirror 4Imaging lens 2Imaging lens 1Laser mirror 2Laser mirror 3Laser mirror 1Photosensitive drumBD PCB
