black stain on good quality print

[lealy]

Hi, when I print a full color picture, in quality print, I got black stain on the left middle page.

Thanks, Lealy

[Betty0610]

@lealy

Welcome to the HP Support Community.

Does this happen while copying too? or while printing other documents?

What is the size and type of paper being used for printing photos?

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.

   • 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.

   • If the print quality is acceptable, touch Done.

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

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!

Thanks!

Have a great day!