Kyocera FS-1900 - Exposure

4-7
FS-1900
(2) Exposure
The charged surface of the drum A is exposed to the laser beam scanning from the laser scanner
unit B.
Figure 4-1-5 Exposure
The polygon motor C (with polygon mirrors) revolves (27,165 rpm) 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.
A
B
Laser beam
output
C
D
D
E