Ld Safety Mechanisms - Gestetner G056 Service Manual

PRINTING PROCESS

LD Safety Mechanisms

PSU Engine Board
+ 2 4 V
Front Cover SW
Rear Cover SW
LD Drive Board
Regulator
+ 5 V L D
LD
Control IC
G056D504.WMF
Laser Safety Switch
To ensure technician and user safety and to prevent the laser from inadvertently
switching on during servicing, there are safety switches on the front and rear
covers.
When either of the covers are opened, the +5VLD power to the laser diodes is
interrupted.
Laser Shutter
[A]
The laser shutter [A] is a back-up safety
measure in case the switches are
defective and the +5VLD power reaches
the laser diodes.
The laser shutter cuts the laser beam
when the front cover is opened.
G058D202.WMF
SM 6-9 G056/G058