region reset needed

[KTB2]

I think need a region reset for my HP Officejet Pro 8600 n911a - it has not recognized genuine hp 950xl/951xl cartridges bought in the US.  The cartridge protection has been turned off but the message reads "incompatible ink cartridge not intended for use in this printer."  Substitute ink cartridges are recognized but do have warning about non-hp use.

[Hawks_Eye]

Hi @KTB2 

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

If the printer will be used in a different region from where it was originally bought and used, only then we need to perform some changes called a regional reset for your printer; only after that will you be able to use the printer with the current region's ink cartridges.

Please let me know if this the case so that I could assist you further.

If the printer is used in the same region but the error appears then try the below steps to resolve the issue:

 

Step-by-Step Recovery

1. Clean Cartridge Contacts

Sometimes, contact misalignment or residue can trigger false incompatibility:

• Power off the printer and unplug it.
• Remove the cartridges.
• Gently clean the copper contacts on both the cartridges and the printhead using a lint-free cloth slightly dampened with distilled water.
• Let everything dry completely before reinserting.

This simple step has resolved similar issues for other users.

 

2. Reset the Printer

• Disconnect power while the printer is on.
• Wait 60 seconds.
• Reconnect power directly to a wall outlet (avoid surge protectors).
• Power on and check for changes.

 

3. Update Firmware

Even if the printer seems up to date, manually reinstalling firmware can help:

• Visit the HP Officejet Pro 8600 n911a support page
• Download and run the latest firmware update utility via USB connection

If the issue persists, HP support may need to perform a region reset—a one-time service that aligns your printer’s firmware with the cartridge region. Let me know how the printer responds—I’ll guide you further if needed. 

You're not alone in this, and we’ll get it sorted.

Awaiting your reply.

Take care, and have an amazing day!

Regards, 

Hawks_Eye