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: Shiki Compatible Toner Cartridge for Konica Minolta bizhub C454/C554/C454e/C554e Black (TN512K/A33K132) 27,000 Pages : Office Products
Konica Minolta TN512K Black Toner A33K132 bizhub C454 C554e Part Number: A33K132
Amazon.com: Konica Minolta TN512 Standard Yield Toner Cartridge Set : Office Products
Crid Tn512 Cyan,Magenta,Yellow,Bk Cartridge Compatible for Minolta Bizhub C454, C554 Black + Tri Color Combo Pack Ink Toner - Crid : Flipkart.com