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 (M1) 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. Also, the laser unit cleaning motor (M10) operates to automatically clean the laser unit glass.
No. | Name | No. | Name |
|---|---|---|---|
1 | Polygon motor (M1) | 6 | Mirror B |
2 | Polygon mirror | 7 | Mirror C |
3 | f-theta lens A | 8 | Laser unit glass |
| 4 | f-theta lens B | 9 | Spiral |
| 5 | Mirror A |