These printers use the Lanier 841287 cartridge:
Click On a Printer to View it's Cartridges
          Lanier LD 540 C
          Lanier LD 550 C
          Ricoh Aficio MP C-4000
          Ricoh Aficio MP C-4000 G
          Ricoh Aficio MP C-4000 SPF
          Ricoh Aficio MP C-4501
          Ricoh Aficio MP C-5000
          Ricoh Aficio MP C-5000 G
          Ricoh Aficio MP C-5000 SPF
          Ricoh Aficio MP C-5501