301XL Black 8.5ml / Colour 7.5ml Ink Cartridge For HP OfficeJet 2620 Printer
A REAL 301XL black should have a sponge visible in the lower holes if you peal off the top sticker and weigh a min 32g. HP OfficeJet 2620 2622 2624 4630 4634 4636 4639 Printers. Simply ignore the low ink warning and continue printing.