Toshiba e-studio 202L - Page 196

e-STUDIO200L/202L/230/232/280/282 LASER OPTICAL UNIT June 2004 © TOSHIBA TEC
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