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You will cancel the old printer in your HP Instant Ink account and choose "Add a Printer" to add the 6978. You will then get two months free on the new printer as well. They will send you the new ink, and you will in future only pay for the new one.
Sorry, there was a problem. Please try again later.I would think you can. In your account for instant ink, you can add devices and of course you can always delete a printer.
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