Laser Unit 
SM 4-49 D115/D116 
Replacement 
and 
Adjustment 
4.12 LASER UNIT 
 
  Turn off the main power switch and unplug the copier before starting replacement. The 
laser beam can damage your eyes severely. 
 
  Do not touch the screws on the LD board on the LD unit. Do not try to adjust any part of 
the LD unit. The LD unit is precision adjusted before shipment. 
  Do not touch the polygon mirror, shield glass, or lenses with your bare hands. 
4.12.1  LOCATION OF THE CAUTION DECAL