Brother HL-4140CN Service Manual page 292

(11) Release the Hook to remove the Gear 33 from the T2 frame L unit.
Gear 33
Hook
(12) Remove the Extension spring from the Spring hook.
(13) Release the Hook to remove the Gear 46/55 from the T2 frame L unit.
T2 frame L unit
Hook
Extension spring
Fig. 3-205
Gear 46/55
Spring hook
Fig. 3-206
3-144
T2 frame L unit
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