Hi Jasmin, for this printer there are a few options for the black cartridge Our compatible options being the cheapest, you can get the 'RECF380X' with a capacity of around 5000 pages for £48.90 inc VAT or the 'RECF380A' with a capacity of 2,400 pages for £38.84 inc VAT. If you're still confused please email our customer care team at
[email protected]