Amazon.com: Do it Wiser Compatible Printer Toner Cartridge Replacement for Ricoh 842091 for use in Ricoh MP C307 MP C306 MP C406 MP C407 (Black - High Yield) : Electronics
Black Generic Ricoh MP C407 Toner Cartridge (842091)
Ricoh 842091 MP C406 Toner Cartridge Black MP C306 C406 C306SPF C306ZSPF C307 C406SPF C406ZSPF C307SPF - Sun Data Supply