4-8
FS-1900
Name Description
1 Laser diode Emits diffused, visible laser.
2 Collimator lens Aligns the laser beam to the cylindrical lens.
3 Cylindrical lens Compensates the vertical angle at which the laser beam hits on of the
polygon mirror segments.
4 Polygon motor Has six mirror segments around its hexagonal circumference. Each
mirror corresponds to one scanned line width on the drum when the
laser beam scans on it.
Laser scanner unit
Figure 4-1-6 Laser scanner unit
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