Brother DCP-8070D Service Manual page 224

(7) Install the Sub duct into the Air duct.
(8) Insert the bosses of the Joint cover and Hooks on the cover, then secure the Joint cover
with the four bind B M4x12 Taptite screws.
Bosses
8a
<Left side>
Taptite bind B M4x12
Hooks
Air duct
7b
7a
Sub duct
Fig. 4-70
8b
Fig. 4-71
4-45
<Back side>
Joint cover
Taptite bind B M4x12
Hooks
Hooks
<Front side>
Taptite bind B M4x12
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