Brother MFC9100C Service Manual page 64

1.7 Control Panel ASSY, Cover Sensor PCB, and Cover Sensor Actuator
(1) Push the open button to open the scanner unit.
(2) Insert the tip of a flat screwdriver into each of the four holes provided in the bottom of the
scanner unit and unhook the four latches while lifting up the control panel ASSY.
(3) Slightly slide the control panel ASSY towards you to separate it from the scanner unit.
(4) Disconnect the cover sensor harness and panel-main harness from the control panel PCB.
(5) Turn the cover sensor actuator as shown below and lift it up.
(6) Remove the screw and take off the cover sensor PCB.
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