HP B3G84-67906 Tray 1 roller kit is a replacement roller set for the multipurpose paper tray in compatible HP LaserJet printers. It brings together the rollers involved in drawing paper into the printer and feeding sheets through the tray’s paper path.
The set contains one pickup roller, one feed roller and one separation roller. These parts work at different stages of paper handling: the pickup roller engages the sheet, the feed roller moves it onward, and the separation roller helps handle sheets individually. The kit is intended for Tray 1, so it provides the corresponding rollers together as one replacement set for supported printers.