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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. .
Mohammed20
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Can I refill my hp office jet 7720 cartridge?

HP Recommended
Microsoft Windows 10 (64-bit)

I refilled my hp oj7720 yellow ink cartridge, but my printer refused to pick. Please help

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Repairatrooper
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HP Recommended

You cannot simply add more ink to a cartridge unless the printer is designed for that. There is a chip on ink cartridges that keeps track of how much ink has been used and unless replaced or reset, once it has registered that the amount of ink shipped has been used adding more ink does not change that.

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