Brother DCP 8040 - B/W Laser - All-in-One Service Manual page 146

(3) Remove the three pan M3x6 screws.
(4) Remove the five cup S M3x6 Taptite screws, and then remove the main PCB ASSY.
Screw, pan
M3x6
Taptite, cup S M3x6
NOTE:
After replacing the Main PCB, please perform the following operations.
APPENDIX 1
APPENDIX 2.1
APPENDIX 2.2
Chapter 7 3.12
Taptite, cup S M3x6
Fig. 4-116
EEPROM CUSTOMIZING CODES (Refer to A-1.)
INSTALING THE UPDATE DATA TO THE MACHINE (Refer to A-3.)
SETTING ID CODES TO MACHINES (Refer to A-5.)
CCD Scanner Area Setting (Maintenance mode 55) (Refer to P7-20.)
4-65
MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
Main PCB ASSY
SERVICE MANUAL