Missing lines in black ink

[Blake33]

Printer is missing black lines making all documents unreadable. I’ve gone through cartridge cleaning, alignment and clean smear with no luck. I tried printing a checkerboard and even an entire black page (see photos). Color works great. HP envy photo 7155 

 

 

[sandytechy20]

@Blake33

Welcome to the HP support community.

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

Print a Print Quality Diagnostic page

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

1. On the control panel, swipe down to open the Dashboard, and then touch the Setupicon.

2. Swipe up on the display, touch Reports, and then touch Print Quality Report.

Clean the ink cartridges

Use the automated tool to clean the ink cartridges.

note:

To avoid issues that require cleaning, always turn the printer off with the Power button.

1. On the control panel, swipe down to open the Dashboard, and then touch the Setupicon.

2. Swipe up on the display, and then touch Printer Maintenance.

3. Touch Clean Cartridges, and then touch Continue.

   A Print Quality Diagnostic page prints.

4. Examine the Print Quality Diagnostic page.

   • If the print quality is unacceptable, touch Clean Again to continue the next level of cleaning. Repeat these steps for the third cleaning stage, if necessary.

     note:

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

   • If the print quality is acceptable, touch Done. You can stop troubleshooting.

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.