Installing the ROM0YSF-07YThis section describes how to install the optional ROM in themachine. The ROM is used connected to the ROM connectorsinside the back cover of the machine. Read the precautions inInstallation(P. 3) before installing the ROM.Precautions when installing the ROM● Do not cause any metal such as screws to come into contact with the circuit boards in the machine. Doing somay result in damage to the machine.● Do not touch the internal parts, printed wiring, connectors, or switches. Doing so may result in damage tothe machine.● Do not turn ON the power when the ROM cover is open. Doing so may result in damage to the machine.Precautions for avoiding static electricityThe ROM contains parts that are sensitive to static electricity. Observe the following precautions for preventingthe ROM from being damaged by static electricity.● Touch a metal portion in the room to discharge static electricity from your body before handling the ROM.● Do not touch any item that is likely to generate static electricity, such as a display, during work.● To avoid the influence of static electricity, do not remove the ROM from the protective case until just beforeconnecting it to the ROM connectors.1 Turn OFF the machine, and unplug the power plug from the AC power outlet.● When you turn OFF the power, shut down the machine from the operation panel without using the powerswitch. Turning OFF the Power (Performing a Shutdown)(P. 34)2 Remove the back cover.1 While pushing the catch, slightly open the cover toward you.Appendix629