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- HP Instant Ink
- Defective Ink Cartridge

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Common problems for INSTANT INK, HP+ PLANS: INK AND TONER
We would like to share some of the most frequently asked questions about Instant Ink. Check out this link: HP INSTANT INK, HP+ PLANS: INK AND TONER. .
It has been a while since anyone has replied. Simply ask a new question if you would like to start the discussion again.
11-29-2021 06:45 AM
Product: DesignJet 72 Inkjet Cartridge 130 ml
Operating System: Microsoft Windows 10 (64-bit)
I have a defective cartridge and can't understand how to return for warranty. Website wants serial number? It's blocked somehow and the ink won't flow.
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