Laser Exposure 
 
M0C3/M0C4/M0C5/M0C6/M0C7  7-22  SM 
7.6.2  MECHANISM 
Synchronization Detector 
The mirror reflects the beam from the LD unit to the synchronization detector. 
Automatic Power Control (APC) 
 
The LD driver on the LD drive board automatically controls power for the laser diodes. The laser 
diode power is adjusted at the factory. 
LD Safety Mechanisms 
 
Laser Safety Switch: There are safety switches on the front and rear covers. These switches 
stop the laser while the cover is open. If the user opens one of these covers, the +5VLD power 
to the laser diodes is stopped.