Toshiba e-STUDIO283 - Page 196

e-STUDIO200L/202L/203L/230/232/233/280/282/283 © 2004 - 2008 TOSHIBA TEC CORPORATION All rights reserved
LASER OPTICAL UNIT
8 - 2
Fig. 8-2
Front
Laser driving 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
fθ lens-2
fθ lens-1