Exposure - Kyocera FS-1800 Service Manual

(2) Exposure

The charged surface of the drum A is exposed to the laser beam scanning from the laser scanner
unit B.
C
The polygon motor C (with polygon mirrors) revolves to reflect the laser beam over the drum A.
Lenses D and diversion mirror E are housed in the laser scanner unit B. These lenses adjust the
diameter of the laser beam (670 nm wavelength) so that the laser beam effectively focalizes on the
drum A surface.
D
D
Figure 4-1-5 Exposure
4-7
E
Laser beam
output
A
FS-1800/1800N | FS-3800/3800N
B