Oki ES3640MFP Component Replacement Manual page 71

Imaging Unit Up / Down Mechanism
The Imaging Unit Up /Down mechanism uses two Lift racks, front and back, to lift the color Imaging Units away from
the Transfer Unit belt during monochrome printing.
Rear Up / Down Rack
1. Remove the Imaging Unit Sensor Board.
2. Remove the Registration Assembly.
3.
Release the hook and 4 tabs that secure the Up/Down Rack Cover to the frame, and then remove the cover.
4.
Move the Up/Down Rack to the right to clear the gear set, and then remove the Up/Down Rack
Front Up/ Down Rack
Note:
Two copper contacts are positioned between the frame and the Control Panel bracket. Replace these contacts
before securing the bracket to the frame.
1. Raise the Basket Assembly.
2.
Remove the Waste Toner Container, if installed.
3.
Remove the Front Door.
4. Remove the Left Front Cover.
5.
Remove the Upper Front Cover.
6.
Remove 4 (metal, 6 mm) screws that secure the Control Panel bracket to the frame.
7.
Lower the bracket to access the Up / Down Cover.
Up / Down Rack Cover Up / Down Rack