Brother MFC-9420CN Service Manual page 192

(6) Remove the setscrew (BT3x8, 2 pieces) from the paper guide (C) PU.
(7) Remove the paper guide (C) PU.
(8) Sliding the paper feed roller along the shaft, remove it from the shaft.
(9) Pull out the separator pad from the frame.
Paper guide (C) PU
Fig. 6-23
6 -1 7
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BT3x8
Paper feed roller
Separator pad
Rear cover
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