Installed new cartridge. Printer won't print

[JenC3]

HP OfficeJ 6958 won't print after installing new ink cartridge.  I got some dark streeks like the black ink was out.  I reinstalled printer.  Still doesn't pring.  Was working fine before I put in new ink.

[sandytechy20]

@JenC3

Welcome to the HP support community.

I understand that you are getting print quality issues, and I am glad to assist you.

Did you make a copy and check if that prints fine?

Meanwhile:-

Print a Print Quality Diagnostic Page

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

• Load plain white paper in the input tray.
• From the printer control panel, open the Setup menu.
• Open the Reports or Tools menu.
• Touch Print Quality Report.

If that does not print fine, follow these steps:-

Clean the printhead

• From the printer control panel, open the Setup menu.
• Open the Printer Maintenance menu.
• If necessary, open the Tools menu, and then touch Clean Printhead.
• A test page prints.
• 
• 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.

Refer to this HP document for further assistance:- Click here

Keep me posted.

If this helps, please mark the public post as an accepted solution so that it benefits several others.

Cheers.