Epson SQ-850 Printer User Manual


 
Interface Boards
Removing the interface board cover
1. Unplug the power cable from the electrical outlet. Then
unplug the cable from the rear of the printer.
WARNING: High voltages are present inside the
printer when the power is on. NEVER attempt to
install or remove an interface board without first
turning off the printer and unplugging it from the
electrical outlet. 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.
Using Printer Options 5-33