Your MC770 or MC780 is printing light, the toner warning's blinking, and you don't have time to source it from a marketplace that says 'back in 3 weeks.' This is the black toner for your OKI colour laser. Genuine, in stock, ready to ship
| brand | OKI |
| product_type | Black Toner Cartridge |
| compatible_model | MC770, MC780 |
| colour | Black |
| category | Printing |
| subcategory | Ink Toner & Ribbons |
