Optical Section - Kyocera ECOSYS P2235dw Service Manual

(2) Optical section

(2-1) Laser scanner unit
The charged drum surface is scanned by the laser emitted from the laser scanner units. The laser reflects
to the polygon mirrors by rotating the polygon motor so that the laser scans horizontally to the image. The
laser scanner unit has some lenses and mirrors, that adjust the diameter of the laser to focus the laser to
the drum surface.
Components parts
1. Polygon motor
2. fθ lens
3. Mirror
4. Laser scanner frame
5. Collimate lens
6. Cylindrical lens
7. Laser bracket
8. Drum
3 2
Figure 3-22
2 1
8 3
Figure 3-23
3-24
2RV/2RW/2RX/2RY/3RA
1 4
8
4 6 5 7