HP OfficeJet 8600 print head error

[Ron6962]

I recently began receiving various errors related toprint head and ink issues. I am using refilled HP ink cartridges, and in the past they have worked A-OK. Now they don't and I'm assuming it may be related to a firmware upgrade. I have tried reverting to a previous firmware version, but have not been successful. Any advice is appreciated. The printer is a HP OfficeJet Pro 8600 premium, and I am running Windows 10 Professional.
Thanks.

 

[ruffin]

Use only HP brand ink & cartridges. You will be glad you did. Nothing to do with firmware upgrade..

 

[Ron6962]

ruffin, I appreciate your reply and opinion, but I have been using refilled HP ink cartridges OK until now. That is why the question. This "printhead missing or installed incorrectly" error appears to be a common problem with the OJ8600, and occurs with original HP ink cartridges as well. I would still like to know how to revert the firmware.

 

[ruffin]

Any firmware upgrade is now part of printer.

Try this:
HP OfficeJet Pro 8600
Printer Control Panel
Click Right Arrow -> Click Setup -> Select Preferences -> Select Chip Info -> Click OK To Disable Usage info
Turn Printer Power Off -> Unplug Power Cord Form Wall Outlet
Re-boot computer
Restore Printer Power

Advise

 

[ruffin]

Access 8600 Toolbox
Under HP Cartridge Protection Tab
Select Disable Cartridge Protection
Turn off printer and unplug 5 minutes
Restore Printer Power

Advise

 

[Ron6962]

Thanks for the suggestion. I did this process early on in my efforts, however, I did not reboot my computer as part of the process. Unfortunately now, I cannot get the printer to power up to the point that I can access Setup. It hangs with the Print Cartridge error message, and my only option is to power down and back up. When it comes back up, I get the same error message.

 

[ruffin]

See these Youtube videos and dont forget the many additional pages at bottom:

https://www.youtube.com/results?search_query=hp+8600+firmware+downgrade

 

[Ron6962]

Thanks again, ruffin.....I appreciate the links you referenced. I have previously tried them all, and while a couple of them show hope, they are in Portugese and I cannot follow the process. The others all address the 8610-8640 series printers and there is nothing addressing the 8600 Pro with regard to reverting the firmware. I tried cleaning the printhead unit, but still get the same resulting Ink System Failure error. As much as I detest giving up, it appears I have reached the end of the road. Thanks again.

 

[ruffin]

Yep, I noticed the foreign language videos, but still found a few in English. Sorry we could not help
you more. The 8000 series printers, though not specific to your 8600 model, should be similar
in function & operation. You might contact HP, just to see what info they might offer up.
Wish you luck with it.

 

[Ron6962]

Thanks again for your help. My experience with HP out of warranty issues has not been positive, but this may be worth another try, as you suggest. If I learn anything of value, I will post back.