Brother DCP-9040CN Service Manual page 162

The following procedure is for DCP-9042CDN and MFC-9450CDN only.
(4) Remove the two bind B M4x12 Taptite screws, and then remove the Tray cover ASSY.
Taptite, bind B M4x12
<Top of paper tray>
(5) Turn the paper tray upside down.
(6) Release the two Hooks to remove the Paper guide DX ASSY.
Hook
Fig. 3-3
<Bottom of tray>
Paper guide DX ASSY
Fig. 3-4
3-30
Tray cover ASSY
Hook
Confidential