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
LD Compatible Okidata 44315304 5PK Black Laser Toner Cartridges for C610 Series 843964077882 | eBay
LD Compatible Okidata 44315304 4PK Black Laser Toner Cartridges for C610 Series 843964077875 | eBay