Epson EPL-N1600 Service Manual page 7

Warning/Caution Labels
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.
ROS ASSY.
The laser beam used in this printer is invisible and it 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.

Do not expose yourself to the laser beam to prevent
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.