Help with Printer Failure error

[8620printer]

Hello!  My OfficeJet 8620 displays the error Printer Failure:  There is a problem with the printer or ink system.  Turn printer off, then on.  If problem persists, contact HP."  I have spent hours researching how to fix this problem.  Periodically, the error changes to "Missing or Failed Printhead."

I have tried:

-Hard resets, as well as semi-full resets through the hidden support menu.

-Clearing the hardware failure messages through the hidden support menu.

-Updating the printer.  It is up to date.

-Resetting the printhead and manually cleaning the printhead.

-Changing ink cartridges.

-Removing the back of the printhead and cleaning the contacts of the printhead and the cartridges.

-I tried most of the above steps many times, with hard resets in between.

What steps could I take next to clear these errors?  Thank you in advance!  I love my 8620 and want to be able to use it again!  

[Garp_senchau]

@8620printer, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

Restart the Printer

1. Turn off the printer.
2. Unplug the power cord from the back of the printer.
3. Press and hold the power button for 30 seconds.
4. Wait for 60 seconds and connect the power cord back in.
5. Turn on the printer.

Run HP Smart:

• Download and run the HP Smart. Follow the prompts to diagnose and fix common printing issues.
• Refer: Use Diagnose & Fix in HP Smart to repair common printing issues (Windows, macOS) | HP® Support

Update Printer Firmware (Update the firmware on an HP printer | HP® Support)

• Go to the HP Customer Support - Software and Driver Downloads page. Enter your printer model number and search for the latest firmware update. Follow the instructions to download and install the firmware update.

Also, refer to this guide: HP Printers - An 'Ink System Failure,' 'System Supply Problem' or 'Supply System Problem' Error Disp...

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

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! 😊

Regards,