Brother P2500 - Manual (Page 63)

2-6
☛ 2.
Remove the two screws securing the rear cover and pull out the access cover.
Fig. 2-3 Removing the Main Controller access cover
☛ 3.
Unpack the memory board and hold it by its edge.
!
Caution
Memory boards may be damaged by even a small amount of static electricity.
Do not touch the memory chips or the board surface. When handling the board
and before installing or removing it, wear an antistatic wrist strap, or
frequently touch the surface of the antistatic package or bare metal on the
printer.