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The Interface Boards
Removing the upper case
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 present in your body.
1. Unplug the power cable from the electrical outlet.
2. Remove the font compartment cover.
Appendix A-3