Brother HL-4140CN Service Manual page 251

(3) Remove the two Taptite bind B M3x10 screws to remove the Registration mark sensor
holder ASSY from the Base frame unit.
(4) Remove the Taptite bind B M3x10 screw to remove the Shutter solenoid from the
Registration mark sensor holder ASSY.
Shutter solenoid
Base frame unit
Fig. 3-133
Pin
Fig. 3-134
3-103
Registration mark sensor holder ASSY
<Back side>
Taptite bind B M3x10
Registration mark sensor holder ASSY
Taptite bind B M3x10
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