Laser Beam - Epson AcuLaser C4000 Service Manual

Laser Beam

Do not expose yourself to the laser beam to prevent
W A R N I N G
injury (blindness).
Do not open the cover that has the laser beam
warning label.
If you disassemble or assemble the printer, turn off
the power.
If you need to work on the printer with power applied,
strictly follow the instructions in this manual.
Understand how the laser beam functions and take
maximum precautions not to injure yourself or
anyone around you.
NOTE: The laser beam has a narrower frequency band and more
coherent phases than any other light (sunlight, electric light).
It has excellent monochromaticity and convergence. A thin
laser beam reaches long distances. Because of its
convergence characteristic, the laser beam converges into
one point, causing high density and high temperature. A
laser beam is harmful to the human body.
NOTE: The laser beam in this printer is invisible.
Figure 0-2. Laser Beam