Amazon.com: Do it Wiser Compatible Printer Toner Cartridge Replacement for Ricoh 841851 for use in Ricoh MP C6003 MP C4503 MP C5503 MP C6004 (1Pack - Magenta) : Electronics
Katun Performance™ 841849 MP C6003 Toner Cartridge Black 841849 Ricoh MP C6004ex C6004SP TE Ed C6003SP C5503SP C4504ex - Sun Data Supply