Ricoh B121 - Ld Unit; Polygonal Mirror Motor

LASER UNIT
B121 Series/B259 Series 3-20 SM
3.5.4 LD UNIT
CAUTION: Do not touch the paint-locked screw [A]. The LD position is adjusted
before shipment.
1. Laser unit ( 3.5.3)
2. LD unit [A] ( x 1)
NOTE: Do not screw the LD unit in
too tightly when installing it.
3.5.5 POLYGONAL MIRROR MOTOR
1. Laser unit ( 3.5.3)
2. Two rubber bushings [A]
3. Laser unit cover [B] ( x 1)
4. Polygonal mirror motor [C] ( x 4)
5. After reassembling, adjust the image
quality ( 3.13).
B121R916.WMF
B121R966.WMF
[B]
[C]
[A]
[A]
[B]