Oki ES3640MFP Component Replacement Manual page 79

LVPS Fan
1.
Remove the LVPS enclosure.
2.
Disconnect the Fan connector.
3. Release the Fan harness from the insulation film.
4.
Remove 2 (metal, 30 mm) screws securing the fan to the enclosure to remove it.
LED Head
1. Open the Top Cover.
2.
Release the front tab of the LED Head from the holder by gently pushing the LED Head towards the rear while
pulling the holder forward.
3. Release the rear tab of the LED Head by pulling the LED Head towards the front of the printer.
4. Disconnect 2 connectors to remove the LED Head from the holder.