Ricoh K-C3 - Laser Exposure; Overview

B245/B276/B277/B268/B269 Service Manual 18-Jan-06
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Laser Exposure
Overview
1. LD unit
2. Synchronization detector lens
3. Double toroidal lens
4. Shield glass
5. OPC drum
6. 1st mirror
7. 2nd mirror
8. F-theta lens
9. Polygon mirror
10. Cylindrical lens
11. Synchronization detector mirror
 The LD drive board controls both the laser output and laser synchronization mechanism.
 The machine cuts off the power supply to the LD drive board if the front or right cover is
opened.