• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
Guidelines
Here is the solution for the error: "Encryption Credentials have expired" when attempting to print or scan from Mac OS or iOS devices: Click here to view the troubleshooting steps!
Check some of the most frequent questions about Instant Ink: HP INSTANT INK, HP+ PLANS: INK AND TONER.


Check out our WINDOWS 11 Support Center info about: OPTIMIZATION, KNOWN ISSUES, FAQs AND MORE.

‎01-26-2019 08:33 AM

HP Recommended
Product: HP Officejet Pro8600, N911g
Operating System: Microsoft Windows 10 (64-bit)

HP Officejet Pro 8600, N911g, Product Model Number cm750A, Firmware Version CLP1CN1829AR, Country USA.

I tried to update the firmware, but it says my firmware is up to date.

I recently replaced the black ink cartrige and now get error message "Incompatible ink cartridge."  If I put the old one back in, all is OK.  I tried all the advice on their help page.   I talked to HP tech support; I've followed all their advice while on the phone.  They say it is a hardward error.   But how can it be if the old, almost empty cartridge still works?  I firmly believe that this is a change to their cartridges, but HP won't or can't help.  Any suggestions?  I have 2 sets of cartridges and hate to throw them away.  Please help.

Who Me Too'd this topic
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.