Installation 2 - 86 OKIFAX 5300/5600 Serv Man, P/N 592783012.10 Installation of Optional Units(1) Items• Memory board• PC interface board• Telephone handset• Second paper cassette unit(2) Procedure• Turn the facsimile power switch OFF and remove the AC power cord.Note:Unplug the AC power cord from the wall outlet first and then from the facsimile.• Do not remove unnecessary parts.• Since screws and small parts are likely to be lost, they should temporarily beattached to their original positions.