Brother DCP-9040CN Service Manual page 269

(6) Release the two Hooks of the LED holder to remove it from each of the four Toner sensor
PCB ASSYs (TE/NEW).
LED holder
Assembling Note:
Assemble the Toner sensor PCB ASSY (TE/NEW) so that the Shutter of the New toner actuator
is put into the sensor section of the Toner sensor PCB ASSY (TE/NEW).
New toner actuator
Hook
Hook
Fig. 3-195
Shutter
Sensor section
Fig. 3-196
3-137
Toner sensor PCB ASSY (TE/NEW)
Toner sensor PCB ASSY (TE/ NEW)
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