HP 771 3-pack 775ml DesignJet Ink Cartridges Matte Black. For use in DesignJet Z6200 photo printers. OEM: CR250A. DesignJet printers are designed to produce top photo image quality, so make sure to use inks that provide the impressive results that your printer is made for. Dense blacks with crisp, sharp graphics achieve realistic photo quality with a fast turnaround. HP 771 cartridges are easily removed and inserted using a simple push / pull motion which saves you time in the printing process. Ink is supplied directly to the printhead, improving reliability even when the cartridges are low.