We get a lot of questions about Instant Ink, the most common question being how it affects using "normal" cartridges that are not part of Instant Ink.
YES, you can use other cartridges when signed up to Instant Ink.
Don't take our word for it, how about our lovely HP chat assistant providing confirmation for us for peace of mind.
How It Works
Every Instant Ink cartridge has a unique chip on it that communicates back to HP through your printer - this is why Instant Ink printers must have an internet connection to function. This chip tracks your usage, ink levels etc.
Normal cartridges obviously don't have this chip, so all that happens is you replace the cartridge and the printer stops tracking your usage.
Important: Your monthly Instant Ink subscription will still need paying when using another cartridge, you just won't be using up your monthly allowance with each page. If you're fully switching to using other cartridges make sure to cancel your subscription.