Brother hl 1650 - B/W Laser Printer Service Manual page 117

(10) Remove the side regist roller from the DX feed ASSY and then remove the T-belt
B40S2M142 and the T-belt B40S2M224.
T-belt B40S2M224
(11) Remove the DX paper actuator and the guide actuator from the DX feed ASSY, and then
remove the paper actuator spring and the guide actuator spring from the each actuator.
Paper actuator spring
Guide actuator spring
DX feed ASSY
(hooks)
DX feed ASSY
T-belt B40S2M142
Fig. 4-32
Fig. 4-33
4-19
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Side regist roller
DX paper actuator
Guide actuator