These printers use the 887640 cartridge:

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