Paper pick-up roller from HP 4/4M cartridge, RB1-2126, RB1-2126-000

The RB1-2126-000 pickup roller is a replacement paper-feed part for the cassette tray of an HP LaserJet 4 printer. It is listed as a Tray 2 pickup roller, serving the paper pickup point for that tray.

This is a third-party new part identified by the exact reference RB1-2126-000. It is intended for the listed HP LaserJet 4 model; the source does not confirm compatibility with other printer models.

The roller is a practical service part when replacing the cassette tray’s paper pickup component.