Toshiba e-STUDIO353 - Page 158

8 - 2
8
e-STUDIO350/352/353/450/452/453
LASER OPTICAL UNIT
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Fig. 8-102
Front
Laser drive PC
board
Laser diode
Laser emission unit
Finite focus lens
Aperture
Cylinder lens
Polygonal mirror
Paper exit
Polygonal motor
Polygonal motor
drive PC board
Rear
H-Sync signal detection
PC board
Slit glass
(
for outgoing laser beam
)
H-Sync returning mirror
f lens-2
f lens-1