Compatible replacement for HP C4912A. Page Yield or Volume @ 5% coverage will be approx 6000. This is a Ink Cartridge. Prices exclude VAT and delivery. All products are covered by a 2 year warranty and next day replacement service. Name and numbers are for indicative purposes only. All products are non-original/non-OEM. FITS: Designjet 500, Designjet 500PS, Designjet 510, Designjet 800, Designjet 800PS, Designjet 815MFP, Designjet 820 MFP, Designjet copier CC800PS, Designjet T1100, Designjet T1100ps