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2.7 Laser Scanning Unit
2.7.1 Laser Scanning Unit O
The Laser Scanning Unit (LSU) consists of 2 polygon
the surface of 4 OPC drums. For this process, there is
reflective mirrors on optical path for each color. K Col
the front, C Color and Y Color scan the laser beam fro
adjustment function which adjusts the scanning line m
protect the glass on the LSU surface from contaminati
PBA on right side.
PBA on right side.
C: Scan direction
K: Scan direction
K
2
3
4
Service Manual
2. Product d
7
5
M: Scan direct
1
1
C
M
3
description
Overview
motors and 2 LD units and forms a latent image on
s a collimator lens, cylindrical lens, 2 F-Theta Lens, 3
or and M Color scan the laser beam from the rear to
om the front to the rear. Also, the LSU has a skew
anually and the shutter & shutter driving device to
on. To interface with the printer, the LSU has a joint
Y: Scan direction
ion
1
1
Y
2
3
5
2-4
44
6
1
LD PBA
2
P/Mirror Motor
3
F1 Lens
4
F2 Lens
5
Skew Adjust
6
Assy
6
Shutter &
Shutter Drive
Motor Assy
7
LSU Temp PBA
SAMSUNG ELECTRONICS
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