OfficeJet Pro 7740, new 952XL ink cartridges and the printer says "supply system problem"

[Kenji808]

I have an OfficeJet Pro 7740 printer and just bought new 952XL "K" cartridges and it keeps saying supply system problem.  I have tried all the steps for resetting with no luck.  I have checked the print head as well.  the chips look good and clean and new.  Any suggestions?

[Sneha_01]

Hi @Kenji808,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

If your HP OfficeJet Pro 7740 printer is displaying a "supply system problem" error after installing new 952XL ink cartridges, here are some troubleshooting steps you can try:

1. Check Cartridge Compatibility

Ensure that the cartridges you have installed are compatible with your printer model:

• The HP OfficeJet Pro 7740 uses HP 952 or 952XL cartridges for the North American market. Double-check the packaging and the cartridge itself to confirm they are the correct ones.

2. Reinstall the Ink Cartridges

Sometimes, the cartridge might not be properly seated in the printer, leading to errors:

1. Turn Off the Printer: Power off the printer and unplug it from the power source.
2. Remove the Cartridges: Open the ink cartridge access door and remove the cartridges.
3. Check for Protective Tape: Ensure there is no protective tape or plastic remaining on the cartridges. Some cartridges come with a protective tape over the electrical contacts or nozzles that needs to be removed.
4. Reinsert the Cartridges: Reinsert the cartridges into the correct slots, making sure they click into place securely.
5. Power On the Printer: Close the access door, plug in the printer, and turn it on.

3. Clean the Ink Cartridge Contacts

Dirty or damaged contacts can prevent the printer from recognizing the cartridges:

1. Turn Off the Printer: Unplug the printer from the power source.
2. Remove the Cartridges: Carefully remove the cartridges.
3. Clean the Contacts: Gently clean the electrical contacts on the cartridges and inside the printer using a lint-free cloth slightly dampened with distilled water or isopropyl alcohol.
4. Dry and Reinstall: Allow the contacts to dry completely before reinstalling the cartridges.

4. Reset the Printer

Performing a printer reset can sometimes clear errors:

1. Turn Off the Printer: Unplug the printer from the power source while it is still on.
2. Wait and Reconnect: Wait for about 60 seconds, then plug the printer back in and turn it on.
3. Check for Errors: See if the error message has been resolved.

5. Use Genuine HP Cartridges

Non-genuine or refilled cartridges can sometimes cause compatibility issues. If you are using third-party or refilled cartridges, consider switching to genuine HP cartridges to see if the issue is resolved.

6. Update Printer Firmware

An outdated firmware version may cause the printer to not recognize new cartridges:

1. Check for Updates: Go to the HP website and check if there is a firmware update available for your printer model.
2. Update Firmware: Follow the instructions to update the firmware. Make sure the printer is connected to your computer or network during the update process.

7. Check for Hardware Issues

If none of the above steps resolve the issue, there might be a hardware problem with the printer:

• Printhead Issues: There might be an issue with the printhead that requires professional servicing

I hope this helps.

Take care and have a good day.

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Rachel571

HP Support