Oki ES3640MFP Component Replacement Manual page 64

12.
Lower the LED Assembly to remove 2 (metal, 10 mm) screws that secures each sector gear located at either side of the LED
Assembly.
13.
Release the Torsion Springs that supply tension to the Lower Basket Assembly. Use a second screwdriver as a stop
to prevent the spring from snapping upwards and striking the LED Heads.
14. Remove the E-ring located on the left end of the Inner Shaft.
15. Remove 4 (metal, 10 mm) screws that lock the Inner Shaft to the Dampers. Access two of these screws through
holes provided at the back near the LED Assembly hinge point.