“Which color ink cartridge do I order for the HP ENVY Pro 6400 All in one printer ?”

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• If you can't find that information in the owner's manual or setup instructions that came with the printer, open the cover to expose the ink cartridges. HP usually places a sticker there to tell the correct replacement cartridge. Or, remove the existing cartridge. It should show the identifying model number.

  Answered by technovice 4 years ago

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• Hi, thank you for the question. The HP ENVY Pro 6400 is compatible with HP 67 ink cartridges.

  Answered by HP Team 4 years ago

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