Brother DCP-7057 Service Manual page 252

(3) Release the hook to remove the paper eject sensor PCB ASSY from the pin of the main
frame L ASSY.
(4) Remove the harness of the paper eject sensor PCB ASSY from the guides of the main
frame L ASSY.
(5) Release the hooks to remove the back cover sensor.
Harness
Guides
Assembling Note:
• When assembling the back cover sensor, attach it while pushing the center of the rear
side of the back cover sensor.
Paper eject sensor PCB ASSY
Hook
Back cover sensor
Hook
Fig. 3-97
3-108
Pin
Main frame L ASSY
Hook
Confidential