Left Upper Cover Assembly for

HP RL2-0770-000CN left upper cover is a replacement cover part for the HP LaserJet M577 series. The parts catalog identifies it specifically as the left upper cover, distinguishing it from the separately listed top, rear upper and right upper covers.

The catalog lists it for the HP LaserJet Enterprise MFP M577 and the M577, M577c, M577dn, M577f and M577z Enterprise Color MFP models. This makes the part relevant to servicing the named M577 machines when their left upper cover needs replacement.

The confirmed part reference is RL2-0770-000CN. The catalog identifies its position and compatible model family; it does not specify dimensions or package contents.