Brother HL-5240 - Manual (Page 66)

5. Options
58
Installing extra memory
a Turn off the printer power switch, and then unplug the printer. Disconnect the interface cable from the
printer.
Note
Be sure to turn off the printer power switch before you install or remove the DIMM.
b
Remove the DIMM cover.
c
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.
d
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 click into place (2).
1 2