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‎04-16-2025 12:17 PM

HP Recommended

I have replaced all the cartridges but still giving me the message - Cartridge not communicating.  How do I fix this ?

1 REPLY 1

‎04-17-2025 11:59 AM

HP Recommended

Hi @joant113 

 

Welcome to the HP Support Community!

 

Thanks for posting your query! We're here to help you get back up and running.

 

It sounds like your HP 8740 Printer is having trouble recognizing the cartridges, even after replacing them. Let’s work through some steps to resolve this issue:

Step 1: Reset the Printer

  1. Turn off the printer and unplug it from the power source.
  2. Wait for at least 60 seconds.
  3. Plug the printer back in and turn it on.
  4. Check if the error persists.

Step 2: Clean the Cartridge Contacts

  1. Turn off the printer and open the cartridge access door.
  2. Remove the cartridges and inspect the electrical contacts (the small copper or gold-colored areas).
  3. Use a lint-free cloth slightly dampened with distilled water to gently clean the contacts on both the cartridges and the printer's carriage.
  4. Allow the contacts to dry completely before reinserting the cartridges.

Step 3: Check Cartridge Compatibility

  1. Ensure that the cartridges you’ve installed are compatible with the HP 8740 Printer.
  2. If you’re using third-party or refilled cartridges, consider replacing them with genuine HP cartridges, as the printer may not recognize non-HP cartridges.

Step 4: Update Printer Firmware

  1. Visit the HP Printer Firmware page.
  2. Download and install the latest firmware update for the HP 8740 Printer.
  3. Restart the printer after the update and check if the issue is resolved.

Step 5: Reset the Ink System

  1. Remove all cartridges from the printer.
  2. Turn off the printer and unplug it from the power source.
  3. Wait for 2 minutes, then plug it back in and turn it on.
  4. Reinsert the cartridges one by one, ensuring they click into place.

 

Let me know how these steps work for you or if you need additional guidance! 😊

 

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

I am an HP Employee.
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