Genuine OEM HP DesignJet T1300 PostScript ePrinter 44 i Ink and Supplies
Matte black ink for the DesignJet T1300 PostScript offers a choice between HP 72 and the larger-volume HP 726 cartridge. Both fill the matte black position. Photo black is a separate ink, so it isn't another capacity option for that slot.
Toner Buzz carries genuine HP 72 individual inks, HP 726 matte black ink, and paired HP 72 printheads for this printer. The larger matte black cartridge holds more ink between changes. Printheads handle ink delivery for their named color pairs and are separate from those ink cartridges.