Xerox 785 - Manual (Page 320)

B-30 WorkCentre Pro 665/685/765/785
12. Press firmly on the green squares on the Drum Unit until the
Drum Unit clicks into place. The following figure shows how to
press the Drum Unit into place.
13. Close the Top Cover. Press down on the Top Cover until a “click”
is heard to ensure the cover is closed.
Drum Unit
029
Top Cover
101