InkOwl Pigmented Ink for HP 940 (500mL, Black) Comes with 500ml of Ink Owl black ink for BROTHER printers For HP 940, 940XL cartridges, HP 8000, 8000A, 8500, 8500A printers Be sure to check out our refillable cartridges for HP 940 printers! This USA-made ink is proven to reliably perform on all papers including glossy. The ink is perfectly color matched to the original and is designed with the same viscosity and surface tension to assure an adequate flow through your printheads. This is not a cheap Chinese ink! The best way to avoid clogging or other print quality issues is to use a pigment-based ink in your HP OfficeJet Pro 8000 or 8500 printer.