HP 678 Black Original Ink Advantage Cartridge (CZ107AA)

The HP 678 Black Original Ink Advantage Cartridge (CZ107AA) is a genuine high-yield black cartridge for HP's Ink Advantage all-in-one printers, the family that handles most of the document printing in homes, small offices and campus print corners. It is the cartridge to reach for when the job is text: reports, contracts, tuition worksheets, invoices and forms. Rated yield is up to 480 pages of black output, measured on the HP DeskJet Ink Advantage 2515 all-in-one, which is what brings the cost per page down against standard cartridges. The ink is pigment-based with a drop size of approximately 13.5 pl, so characters hold their edges on ordinary copier paper. It fits the HP DeskJet Ink Advantage 1515, 2515, 2545, 2645, 3515e, 3545e, 4515e and 4645e along with related Ink Advantage all-in-one models, and it is also offered as a twin black pack (CZ107AA-2) for anyone printing steadily. The 678 is among the most widely copied and refilled cartridges on the local market, so a sealed genuine unit is worth asking for by name. Because the print head sits inside the cartridge, poor ink does lasting damage rather than merely printing badly, and original ink delivers the page count the printer is calibrated against. If you print in colour as well, pair it with the HP 678 Tri-color cartridge.