Amazon.com: MADE IN USA TONER Compatible Replacement for use in Konica Minolta bizhub C258, c308, c368, c454, c554, C454e, C554e Universal (TN-324K/C/M/Y, TN-512C/M/Y/K) (Black,Cyan,Yellow,Magenta, 4-Pack) : Office Products
Amazon.com: KONICA MINOLTA BIZHUB C454E Black Original Toner (27,000 Yield)
Katun Business Color A33K132 A33K232 A33K332 A33K432 TN512K Toner Cartridge black & color 46771 46772 Konica Minolta bizhub - Sun Data Supply