Re: black ink won't print

Welcome to the HP Support Community.

Are you able to copy in black?

The printhead could be clogged, and you might need to clean the printhead several times to restore print quality. Use an automated tool from the printer control panel to clean the printhead.

   CAUTION: 

Never turn off the printer when ink cartridges are not installed. To avoid issues that require cleaning the printhead or that can damage the ink system, always replace ink cartridges as soon as possible, and always turn off the printer using the Power button.

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.

4. Examine the test page.

5. 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.

   NOTE: 

   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.

   Let me know if you see any black on this report.

If the issue persists, please perform the remaining steps from this document: https://support.hp.com/us-en/product/hp-officejet-pro-6960-all-in-one-printer-series/8289579/model/11161242/document/c05076934

Let me know if this helps.

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

Thanks!

Have a great day!