ink tank printer = no longer printing any yellow color; tank half full

[Dee-in-NC]

My HP Smart Tank Plus 551, and ink tank inkjet printer, is not printing any yellow.

Yellow tank is half full....original Epson ink.  NO yellow.

Test pattern shows only blue and red pattern.

Cleaned printheads on highest level (third).

Having this HP printer work with my Mac/Monterey 12.5 IOS is difficult already. Now this!

(It replaced a 1998 Epson Stylus Color 740 that was slow and noisy...but at least printed colors).

Help!

Many thanks

Dee-in-NC

[Anand_Andy]

Hi @Dee-in-NC,

Welcome to the HP Support Community

I understand you are facing a print quality issue with your HP  printer. Not to worry I will help you to get a resolution to resolve the issue.

To assist better:

• Are you using genuine HP inks?
• Does the copy print out the same way? 
• What's the application you are trying to print from? 
• Have you tried printing from a different application or device? 

While you respond to that, let's print a Print Quality Diagnostic page -Post the Print Quality Diagnostic page here so we can help you further. 

You may also refer to this document with steps to fix the " Print Quality Issues" issue applicable to your printer -  Print Quality Issues

 Also, try updating the printer's firmware - HP Printers - Updating or Upgrading Printer Firmware 

If the issue still persists, I'm sending out a private message to assist you with the next course of action. 

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link.

Hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!