HP OfficeJet Pro 8730 Continous Ink Error Message

[Tobias34]

I've got an HP OfficeJet Pro 8730 printer that shows the error message "Continous Ink System not supported by this printer". I'm using orignal HP ink cartriges that are still in warranty. I bought a new print head in January this year. The old printhead used to show the same error message, that's why I bought a new one. The new worked just perfect using the setup cartridges. Now that the first setup cartridge is empty I inserted a new HP cartridge and once again am stuck with the continous ink system not supported error.
I reseted the printer, cleaned the print head (it is printing, only black and white though), cleaned the cartridges.

Any suggestions? Could it be, that the printhead isn't the source of the problem but the printer itself?

[Hawks_Eye]

Hi @Tobias34 

Welcome to the HP Support Community! We're here to help you get back up and running.

Thanks for sharing the details — that error message can be incredibly frustrating, especially when you're using genuine cartridges and have already replaced the printhead. 

Based on your description and the steps you've already taken, here are some additional actions you can try to resolve the issue:

Power Reset the Printer

• Turn off the printer and unplug the power cord from both the printer and the wall outlet.
• Wait for at least 60 seconds.
• Plug the power cord back in and turn on the printer.

Inspect Cartridge Compatibility

• Confirm that the replacement cartridges are the correct model for your printer (HP 952/952XL series).
• Check for any packaging or labeling that might indicate the cartridge is part of a continuous ink system or refill kit — even subtle modifications can trigger this error.

Clean Cartridge and Printhead Contacts

• Power off the printer and open the cartridge access door.
• Remove each cartridge and gently clean the copper-colored contacts with a lint-free cloth slightly dampened with distilled water.
• Do the same for the contacts inside the printer where the cartridges sit.
• Allow everything to dry before reinserting.

Reinstall the Printhead

• If your printer has a removable printhead, reseat it carefully.
• Ensure the latch is fully secured and the printhead is aligned properly.

Update Printer Firmware

• Outdated firmware can sometimes misidentify cartridges.
• Visit the official HP support page to download and install the latest firmware for your model:

Disable Web Services (Temporarily)

• On the printer’s control panel, go to Settings > Web Services and turn it off.
• This can help bypass certain cartridge authentication checks during troubleshooting.

Try a Different Genuine Cartridge

• If possible, test with another new HP cartridge from a different batch or supplier.
• Sometimes a cartridge may be flagged incorrectly due to chip inconsistencies.

If none of these steps resolve the issue, it may be worth checking whether the printer is misidentifying the cartridge due to residual data from the setup cartridges. 

You're clearly doing everything right — and I’m here to help you get this sorted.

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye

[Tobias34]

Hi Hawks_Eye,

thanks for your suggestions to solve the problem. A lot of them I already tried, with no success at all. I will try the remaining ones in a few days and give you feedback afterwards.

Best regards

Tobias34

[Hawks_Eye · Accepted solution]

@Tobias34 

Sure, get back to us at your convenience.

It might be worth double-checking these advanced steps too—just in case they haven’t been covered yet:

Additional Troubleshooting Ideas

• Reset the printer's NVM (Non-Volatile Memory): Sometimes persistent ink system errors are stored in memory. A semi-full reset or NVM reset can clear them.
• Inspect the ink delivery system: If using a CISS (Continuous Ink Supply System), ensure there are no air bubbles or clogs in the tubing.

Let me know how it goes, and I’ll help narrow down the next best steps. 

Regards,

Hawks_Eye

[Tobias34]

Hello Hawks_Eye,

sorry for my late reply. I've tried all of the above suggestions but none succeeded. Resetting the NVM (a Semi-full reset) did help a bit: blue and magenta don't show the continous delivery system error no more. Only yellow is still showing it.

I'll give one last try to buying a new yellow cartridge, hopefully this will solve the issue.

Thanks for your efforts!

Best regards

Tobias34

[Hawks_Eye]

@Tobias34 

Thank you for updating us—and I truly regret that the issue is still lingering despite your persistence. It’s encouraging to hear that the semi-full NVM reset helped partially, but I understand how frustrating it must be to have just one color still triggering the error.

If you're considering replacing the yellow cartridge, that’s a reasonable next step. 

I truly hope the new yellow cartridge resolves it completely. You’ve done everything right, and it’s unfortunate that the printer hasn’t responded accordingly. 

Let me know how it goes—I’ll be here to support you through the next step.

Have a Nice Day!!

Take care, and stay fantastic! 

Regards, 

Hawks_Eye

[Tobias34]

Hello Hawks_Eye,

short update: I bought a new cartridge, now it is working again.

To sum up: several semi-full resets and a new cartridge solved the problem.

Thanks for your help!

Best regards

Tobias34

[imrangallup]

To fix the continuous ink error message on the HP OfficeJet Pro 8730:

1. Turn off the printer and unplug it.

2. Remove all ink cartridges and check for any leaks, dirt, or damaged contacts.

3. Clean the cartridge and printhead contacts gently with a lint-free cloth.

4. Reinstall the cartridges firmly and ensure they are genuine HP ink.

5. Plug in and restart the printer.

If the error persists, try updating the printer firmware or replacing faulty cartridges.