Laser Scanning Unit (Lsu); Lsu Overview - Samsung CLX-8640 series Service Manual

2. Product specifications and Description

2.7. Laser scanning unit (LSU)

2.7.1. LSU overview

LSU consists of 1 polygon motor and 4 laser diodes(LD) units and forms a latent image on the surface of 4 OPC drums. For
this process, LSU has a collimator lens, cylindrical lens, 2 F-Theta Lens, 2 reflective mirrors on optical path for each color.
This LSU adopted the cross scan type scanning. K Color and C Color scan the laser beam from the rear to the front, M Color
and Y Color scan the laser beam from the front to the rear.
1 PBA-LSU LD
2 Motor Polygon
3 Lens-Ftheta A
4 Lens-Ftheta B
5 PBA-LSU PD
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