The Konica Minolta Toner TN-512 Black (A33K152 / TN512K) is a genuine OEM cartridge engineered for high-quality black output in Konica Minolta bizhub series printers such as the C454, C454e, C554, and C554e. Designed for dependable performance, this toner provides an estimated yield of approximately 27,000 pages at 5% coverage, making it well-suited for busy office environments.