HP InkJet Pro 6968 only prints black when glossy paper selected

[3Palms1]

This was a previously posted question/discussion from 2019/2020 but apparently never resolved.  I have the same problem now so wanted to see if there was an update or fix for this.

I can only print in black ink if I select glossy paper. If I go back to regular paper it won't print in black. It does, however print colors in both paper selections. I just installed a new black HP cartridge, then bought another after thinking it was bad. Then I tried all the suggestions in support and online. Cleaning print head, etc. As soon as I tried glossy paper it magically printed in black. So the ink cartridge is fine and the printer is capable of printing in black. It just won't do it when I select regular paper. Help!

[sandytechy20]

@3Palms1

Welcome to the HP support community.

I understand that you are unable to print in black on regular paper, follow these steps to fix the issue.

This seems to be a driver issue, uninstall and reinstall the printer driver to fix the issue.

Perform root level uninstallation to remove all the printer related software's.

• In Windows, search for and open Programs and Features.
• Select your HP printer.
• Select Uninstall.
• In Windows, search for and open Devices and Printers.
• In the Devices and Printers window look for your HP Printer. If you see it listed, right-click on it and choose "Delete" or "Remove Device.”
• Open up the run command with the "Windows Key + R" key combo.
• Type printui.exe /s and click OK.
• Click on Drivers tab.
• Look for HP Printer driver. If you see it click on it and click Remove at the bottom.
• Select OK.
• Remove all instances of the same.
• Select Apply and OK on the Print Server Properties windows.
• Close Devices and Printers. 
• Restart the PC again.

Download and install the printer using the HP Smart app

Click here to download the HP Smart app.

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.