This ADF Hinge Assembly is compatible with Pro 400 MFP M425dn, M425dw, M425, M401, M521dn, M521, M476, and M570 printers.The part numbers CF288-60030 and CF288-60027 are referenced for identification.This component functions to restore the hinge mechanism of the Automatic Document Feeder, allowing for proper opening and closing.It serves as a functional replacement to address issues such as broken hinges or misalignment in the specified printer models.Installation involves removing the existing assembly and securing this unit in its place to resume standard document feeding capabilities.