Oki ES3640MFP Component Replacement Manual page 86

11.
Disconnect the Top Cover Fan connector (P/J482) on the LED Relay Board cover.
Replacement Note
Route the fan wiring through the opening in the Cyan LED Holder and lace the wiring back into the guides provided in
the duct. Also, install the fan with the label facing towards the Transfer Unit.
Fiery Control Board Fan
1.
Open the Rear Cover.
2.
Remove the Fiery Control Board.
3. Remove 1 (metal, 18 mm) screw that secures the Fan to the Card Cage.
Fan