Epson LX-810 User Manual page 177

Interface Boards
2. Unplug the power cable from the electrical outlet.
&
WARNING: High voltages are present inside the
printer when the power is on. Do not attempt to
remove the upper case unless the printer is turned off
and the power cord is unplugged. Also, try not to
touch contacts on the circuit board of the printer
because many of the components can be destroyed by
the static electricity that may build up in your body.
3. Remove the paper tension unit cover, ribbon cartridge, and
platen knob.
Using the Printer Options 5-45