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1.3.2 Exposure

In the exposure process, the drum surface charged negatively is scanned by laser beams to form
invisible electrostatic latent image on the drum surface.
This process is performed in parallel for yellow, magenta, cyan and black colors.
-
Laser beams are emitted from the laser diode in the ROS ASSY. By the rotating polygon mirror,
fixed mirror and lens attached to the Scanner Motor Assy of the ROS ASSY, the surface of each
color drum is scanned from end to end in the axial direction.
: Laser beams (K)
: Laser beams (C)
: Laser beams (M)
: Laser beams (Y)
Polygon Mirror
Mirror
Lens
Mirror
Mirror
Mirror
Mirror
Mirror
Lens
Mirror
Lens
Mirror
Lens
Mirror
Lens
6 – 4
Chapter 6 Principles of Operation
Wsb06004KA
Drum (K)
Drum (C)
Drum (M)
Drum (Y)

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