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10 February 2005
6.8.5 LD SAFETY SWITCH
Front Door
The LD safety switch is on the upper end of the front door. This switch is linked to
the following covers:
Front door
Right cover
The switch prevents laser emission if any of the above covers is opened (when, for
example, you remove jammed paper or replace a consumable).
Circuit
The LD safety switch is on the 5V circuit leading to the LD unit. Between the switch
and the unit, the line has 2 contacts on the front door and on the right door (series
circuit). When either of the covers is opened, the power supply is interrupted,
preventing laser emission.
PSU
+5V
5VLD
BICU
+5V
5VLDS
Door SW
6-45
LASER EXPOSURE
LD
Control
IC
LDDR
B156D500A.WMF
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