Oki B6500 Service Manual page 6

4.4 Laser beams
• Direct exposure to a laser beam can damage the eyes and cause blindness.
• Never open a cover that has a laser warning label attached.
• Before disassembling and reassembling this laser printer, be sure to turn the
printer power OFF.
• When servicing this laser printer while it is running, be sure to follow the
procedures specified in this manual.
• You should understand and exercise all safety precautions to prevent injuries
when servicing equipment that uses a laser. Carefully follow procedures to
prevent anyone in the area from exposure to the laser beam.
Laser beams have the following characteristics:
• Frequencies are higher than other beams (sun and electric bulbs) and
phases are uniform so that high monochromatic and convergence performance
can be obtained and thin beams of light can reach places at a long distance.
• Due to the high convergence, beams are highly concentrated in density and
temperature, which is dangerous to human body.
Reference: The frequency of the Laser used in this laser printer produces beams that are
invisible.
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