HP B3Q10-60173 ADF cover assembly is a replacement printer part that covers the automatic document feeder. It is identified as an assembled cover, rather than a complete document feeder, and is intended to restore the cover component of a compatible printer.
The distributor lists it for the HP LaserJet Pro MFP M427FDN (C5F98A). A specialist retailer also identifies B3Q10-60173 as an ADF cover assembly for the HP LaserJet Pro M426. These references describe the part’s use with those printer models.
This is a specific printer component for the ADF area. The confirmed product information identifies its part number and purpose; it does not specify dimensions, material or package contents.