S2.5 hex key
Before proceeding with the replacement, ensure that the printer is turned off and disconnect the power to ensure safe operations.
Disconnect the FPC ribbon cable from the control screen.
Use the S2.5 hex key to remove the fixed screws from the bottom plate.
Disconnect the fan's wiring connector and remove the bottom plate.
Lift the ribbon cable latch and detach the FPC ribbon cable connected to the mainboard.
Replace the FPC ribbon cable and reconnect it to the mainboard interface. (Note the correct orientation of the ribbon cable insertion.)
Connect the fan's wiring connector back to the mainboard port.