FS-1030D Service Manual - kyocera
FS-1030D Service Manual - kyocera
FS-1030D Service Manual - kyocera
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2G6<br />
(3-1) Laser scanner unit<br />
<br />
<br />
<br />
<br />
<br />
<br />
Diversion mirror<br />
Figure 2-1-11 Laser scanner unit<br />
1. Laser diode .................................................... Emits diffused, visible laser.<br />
2. Cylindrical lens ............................................... Compensates the vertical angle at which the laser beam hits a polygon<br />
mirror segment.<br />
3. Polygon mirror (motor) ................................... Has six mirror segments around its hexagonal circumference; each<br />
mirror corresponding to one scanned line width on the drum when laser<br />
beam scans on it.<br />
4. F-theta lens .................................................... The f-theta lens equalizes focusing distortion on the far ends of the<br />
drum.<br />
5. Sensor mirror ................................................. Bends the very first shot of a laser scan towards the pin photo sensor<br />
(6).<br />
6. Pin photo sensor ............................................ When shone by the sensor mirror above, this photo-sensor generates a<br />
trigger signal for the engine controller to start activating the paper<br />
feeding system.<br />
2-1-11
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