Brother HL-4040CN Service Manual page 94

(8) Secure the three cup S M3x8 Taptite screws on the front side of the Top cover ASSY.
Taptite, cup S M3x8
(9) Secure the two cup B M4x14 Taptite screws on the back side of the Top cover ASSY.
Taptite, cup S M3x8
Fig. 2-30
Taptite, cup B M4x14
Fig. 2-31
2-18
Top cover ASSY
Taptite, cup S M3x8
<Front side>
Top cover ASSY
Taptite, cup B M4x14
<Back side>
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