With some HP DeskJet printers, you need to fool the printer into thinking you have replaced the old ink cartridge with a new ink cartridge instead of a refilled ink cartridge that you filled yourself. If the printer keeps telling you to replace the ink cartridge or the ink level still reads empty, you can reset the printer so that it will recognize...
How to Reset an Ink Cartridge & Not Waste Printer Ink....  Just tried this and it actually works!
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