Perform a full power reset by unplugging the printer for 2 minutes.
Ensure the rear power switch (if available) is enabled.
Remove surge protectors 𝕒𝕟𝕕 [ ℂ𝕒𝕃𝕃~ 
‹ +1⇢(866)⇢49O⇢O338 › ] plug directly into a wall outlet.
Inspect for error light flashes indicating internal board failures.
Firmware corruption⇔ or 
Call +1-866-490-0338 blown fuses may also prevent startup.
If your Brother printer still doesn’t power on, contact Brother Support @ 1.866.490.0338 for professional repair assistance.