HP LaserJet MP Roller Kit (5RC02A) is a maintenance kit for compatible HP LaserJet printers. It is intended for periodic replacement as part of printer maintenance, helping the printer continue to deliver good print quality.
HP lists compatibility with the HP LaserJet Managed MFP E731dn and the HP Color LaserJet Managed MFP E786 Core Printer. This identifies the kit as a service part for supported equipment; it is not a toner cartridge. The manufacturer classifies it in the fuser/maintenance kits subgroup.