Laser Beam
The laser beam used for exposing process during printing is a very powerful, straight, narrow beam of light that produces extreme heat at its focal point. The laser beam is this printer is invisible. Although you cannot see the beam, it can still cause severe damage. Direct eye exposure to the laser beam may cause eye injury or blindness. Never place a mirror or a reflective tool or object in the laser beam path.
To avoid permanent eye damage, follow these directions;
Before starting ay service procedure, switch off the printer power and unplug the power cord from the wall outlet.
Do not disassemble the ROS Assembly or any laser component that displays Laser Warning Sticker.
Use caution when you are working around the ROS Assembly or
when you are performing laser related repair procedures.
Do not disassemble the printer in such a way that the laser beam can exit the printer engine during a print cycle.
Safety Component
Make sure fuses, interlock switches, covers, and panels are all functioning properly after you have reinstalled or replaced them.
Warning/Caution Label
WARNING and CAUTION labels are stuck on dangerous parts in the printer to make you aware of the potential dangers that are present when you are working with those parts.