76 Installing Optionsw w w . d e l l . c o m / s u p p l i e s | s u p p o r t . d e l l . c o mPrecautions When Installing Printer OptionsDISCONNECTING THE POWER CORD:Never remove the control board while the multi-function printer is plugged in.To avoid the possibility of an electrical shock, always disconnect the power cord wheninstalling or removing ANY internal or external printer option.DISCHARGE OF STATIC ELECTRICITY:The control board and internal printer memory are sensitive to static electricity. Beforeinstalling or removing an internal printer memory, discharge static electricity from yourbody by touching something metal on any device plugged into a grounded power source. Ifyou walk around before finishing installation, discharge any static electricity once again.Installing Printer MemoryAdditional printer memory is provided on a Dual In-line Memory Module (DIMM).NOTE: Your multifunction printer supports only Dell DIMMs. Order Dell DIMMs online atwww.dell.com.1 Power the multi-function printer off and unplug all cables from the multi-functionprinter.2 To remove the control board cover, pull out gently, as shown.