“I purchased this black cartridge when HP had none available on their website for my old HP DesignJet 500 wide format plotter and so far has worked with a hitch. Have used their products on my Konica Minolta C series copier with no problems; so I thought I would try their product on the DesignJet. The plotter recognized the cartridge, which sometimes is a problem with HP. It reads it as full, and has worked for the last month great- no problems. Will use them for my color cartridges when I need new ones. And their price is hard to beat!”
