Brother HL-2440 Service Manual page 115

(6) Remove the Taptite bind B M3x10 screw, and then remove the Registration rear sensor
PCB ASSY from the Rear actuator holder ASSY.
Registration rear sensor PCB ASSY
Taptite bind B M3x10
Rear actuator holder ASSY
Fig. 3-54
3-59
Confidential