1	Turn off the printer power switch, and then unplug the printer. Disconnect the interface cable from the printer. IMPORTANT Be sure to turn off the printer power switch before you install or remove the DIMM.
2	Remove the DIMM cover.
3	Unpack the DIMM and hold it by its edges. CAUTION To prevent damage to the printer from static electricity, DO NOT touch the memory chips or the board surface.
4	Hold the DIMM by the edges and align the notches in the DIMM with the protrusions in the slot. Insert the DIMM diagonally (1), then tilt it toward the interface board until it clicks into place (2).
5	Put the DIMM cover back on.
6	Reconnect the interface cable to your printer. Plug the printer back in, and then turn on the power switch. Note To make sure that you have installed the DIMM properly, you can print the printer settings page that shows the current memory size. See Menu table.