Re: OfficeJet Pro 6978 won't print color with new HP ink

Welcome to HP forums, I see that your printer is not printing in color.

• Did you make a copy and check if that prints in color?
• Which operating system is installed on the computer to which this printer is connected?

Meanwhile:

Print a Print Quality Diagnostic Page

1. Load plain white paper in the input tray.

2. From the printer control panel, open the Setup  menu.

3. Open the Reports or Tools menu.

4. Touch Print Quality Report.

   A Print Quality Diagnostic Page prints.

You can refer to this HP document for more assistance:- Click here

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.