The HP LaserJet Tray 2-Roller Kit (527H2A) is a replacement maintenance kit for feeding media from the input tray into a printer. It is intended for Tray 2 and supports the paper feed path during routine printing.
HP describes this kit as part of its printer maintenance range. The kit includes user-replaceable parts, so it can be used for periodic maintenance of a compatible printer.
HP lists compatibility with the Color LaserJet Enterprise 5700dn, Color LaserJet Enterprise Flow MFP 5800zf and Color LaserJet Enterprise Flow MFP 6800zf. These are the printer models identified for this kit.