Replaces the Following Manufacturer Numbers: RM1-4554. Compatible with the Following Printer Models: LaserJet P4014 LaserJet P4014DN LaserJet P4014N LaserJet P4015 LaserJet P4015DN LaserJet P4015N LaserJet P4015TN LaserJet P4015X LaserJet P4515 LaserJet P4515N LaserJet P4515TN LaserJet P4515X.