Ricoh FT 6665
Ricoh 887640 cartridges are used in these printers:
Ricoh FT 4345, Ricoh FT 4355, Ricoh FT 4365, Ricoh FT 5500, Ricoh FT 6640, Ricoh FT 6645, Ricoh FT 6655, Ricoh FT 6665, Ricoh FT 7650, Ricoh FT 7660, Ricoh FT 7670, Infotec 9345 DZ, Infotec 9355 DZ, Infotec 9365 DZ, MB 7345, MB 7355, MB 7365, UNIT C 345, UNIT C 355,