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 cable 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.Using a cross-head screwdriver, remove the three retaining screws located deep inside of the slots on the front of the printer.

Appendix A-3