Oki, OKI45807105, B412/B432/MB472 High-Yield Toner Cartridge, 1 Each - Walmart.com
Amazon.com: OKI Toner Set for C610 Series Printers. Full Set of 4 Genuine OKI Toner Cartridges. 44315301 Yellow, 44315302 Magenta, 44315303 Cyan, 44315304 Black. Type C15 - 6K Yield on colors, 8K
Okidata 44315304 Black for the C610 | Laser Toner Cartridge | OEM Laser Cartridges - InkCartridges