Ricoh MP C6003 - black - original - toner cartridge - 841849 - Toner Cartridges - CDW.com
Ricoh MP C6003 - waste toner collector
Amazon.com: Do it Wiser Compatible Printer Toner Cartridge Replacement for Ricoh 841852 for use in Ricoh MP C6003 MP C4503 MP C5503 MP C6004 (1Pack - Cyan) : Electronics