Showing results for 
Search instead for 
Did you mean: 
vectorcutco Student
1 0 0 0
Message 1 of 2
Flag Post
HP Recommended

Won't print color

HP OfficeJet Pro 6978

Thank you. Won't print in color. Has brand new color cartridges. Completely reinstalled hardware from the internet. Printed an alignment page but it's having trouble scanning it. Color bars are missing. Thank you. HP OfficeJet Pro 6978

HP Support Agent
HP Support Agent
4,095 4,043 209 168
Message 2 of 2
Flag Post
HP Recommended

Won't print color



Welcome to the HP Support Community.


Are you able to copy in color? 


Clean the printhead:

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

  2. Open the Printer Maintenance menu.

  3. If necessary, open the Tools menu, and then touch Clean Printhead.

    A test page prints.

    Examine the test page.

  4. If the print quality is unacceptable, touch Clean Again to continue the next level of cleaning. If necessary, repeat these steps for the third cleaning cycle.


    If the printhead is badly clogged, it might require another cleaning cycle. If so, wait 30 minutes before you perform all three levels of cleaning again.


Print a Print Quality Diagnostic Page, and then evaluate the results.

  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.

Let me know how this report looks.


If you have a different color cartridge, do try that to test if the new color cartridge that is inside the Printer is defective or not.


If the issue persists, please perform the remaining steps from this document:


Let me know if this helps.


If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!



Have a great day!

I am an HP Employee

0 Kudos
† 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