Genuine OEM Oki B4300 Toners

The B4300 has two black-toner capacities: the larger 42102901 and the smaller 42103001. The larger cartridge supports more printing between changes, making it useful if you go through black toner frequently.

Toner Buzz carries genuine OKI 42102901 and 42103001 black toner for the B4300. Both are individual cartridges, so choosing the larger capacity does not mean ordering a pack of several cartridges.