HP 6978 OfficeJet Pro will not print color on test page after installing 3 NEW HP color cartridges

HP 6978 OfficeJet Pro will not print color on the TEST PAGE after installing 3 NEW HP color cartridges. This is ON the test page! It has NOTHING to do with Windows Drivers. I have tried “remove all the software & drivers. Reset to factory settings” 2X.  I did a hardware reset by unplugging the printer from the wall.  **ARE the WINDOWS DRIVERS/software used in printing the TEST page? I have ALSO tried printing THE TEST PAGE with HP Smart.  Same result. [Submitted on Sat. May 10, 2025.] (Is there any way I could get a credit to buy a new printer? Please email me at stevepitts@mindspring.com if this is possible.) My understanding is that paying for a repair from HP is not cost effective (if repair is available). Thanks.