Brother DCP-9040CN Service Manual page 197

(11) Remove the three cup B M3x10 Taptite screws, and then remove the ADF side cover.
ADF unit
ADF side cover
Taptite, cup B M3x10
(12) Remove the four cup B M3x10 Taptite screws from the Upper document chute.
(13) Release the three Hooks on the bottom of the Upper document chute to remove it.
Taptite, cup B M3x10
Hook
Hook
Fig. 3-64
Hook
Taptite, cup B M3x10
Hook
Fig. 3-65
3-65
Upper document chute
Hook
Lower document chute
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