Laser Scanner Unit - Kyocera Mita Ecosys FS-1010 Service Manual

Laser scanner unit

Name
1 Laser diode
2 Cylindrical lens
3 Polygon mirror (motor) Has six mirror segments around its hexagonal circumference; each
4 F-theta lens
5 Sensor mirror
6 Pin photo sensor
FS-1010
3
4
Diversion mirror
Figure 4-1-6 Laser scanner unit
Emits diffused, visible laser.
Compensates the vertical angle at which the laser beam hits a polygon
mirror segment.
mirror corresponding to one scanned line width on the drum when
laser beam scans on it.
The f-theta lens equalizes focusing distortion on the far ends of the
drum.
Bends the very first shot of a laser scan towards the beam detection
sensor (6).
When shone by the sensor mirror above, this photo-sensor generates
a trigger signal for the engine controller to start activating the paper
feeding system.
5
Description
4-8
2
1
6