Brother HL-1040 User Manual page 37

USER'S GUIDE
4-8
2. Unscrew the screws securing the rear plate of the main controller
board to the printer and pull out the main controller board.
Fig. 4-4 Removing the Main Controller Board
3. Unpack the SIMM and hold it by its edge.
!
Caution
SIMM 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.
4. Install the SIMM into the slot and push it gently towares the vertical
until it clicks into place.
Fig. 4-5 Install the SIMM