Ld Safety Switches - Ricoh SP5 Series Service Manual

LASER EXPOSURE

2.4.6 LD SAFETY SWITCHES

SBICU
CN307-2
-1
PSU
+5V
To ensure technician and user safety and to prevent the laser beam from
inadvertently switching on during servicing, there are two safety switches located at
the front cover. These two switches are installed in series on the LD5 V line coming
from the power supply unit (PSU) through the SBICU board.
When the front cover or the upper right cover is opened, the power supply to the
laser diode is interrupted.
LDDR
CN402-3
CN402-4
LD2
2-48
+5V CN403-1
LD5V CN403-3
LD1
June 30, 1998
Front Cover
Safety Sw
A229D500.WMF