These printers use the Ricoh 888604 cartridge:
Click On a Printer to View it's Cartridges
Ricoh Aficio MP C-3500
Ricoh Aficio MP C-3500 SPF
Ricoh Aficio MP C-4500 A
Ricoh Aficio MP C-4500 SPF
Gestetner DSC 535
Gestetner DSC 545