LASER EXPOSURE
B234/B235/B236/D101/D102/D103 6-58 SM
6.10.3 LD SAFETY SWITCHES
The laser unit generates laser beams that are extremely dangerous to the eyes.
To ensure the safety of the operators and service technicians, two safety switches
are connected in series to the inside of both the left front door and right front door.
Either switch breaks the power supply circuit of the LD unit (the laser diode drive
board) every time the left front door or the right front door is opened. This prevents
the LD unit from switching on automatically when either the left front door or right
front door is open.
(Left)
LDA
LD5 V
VCCD
LD
PD
LDD
5V
(Right)
LDB
Front Door Safety Switch
PSU
PSU :
Power Supply Unit
LDB: Laser Diode Control Board
LDD:
Laser Diode Driver
LDA:
Laser Diode Array
B234D999.WMF
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