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Check out our Black or Color Ink Not Printing, Other Print Quality Issues info about: Print quality and Cartridge Issues.
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HP OfficeJet Pro 6978 All-in-One Printer

My printer was printing color pictures well and then all of a sudden the colors were mainly green and yellow, but all of my cartridges are full.

 

1 REPLY 1
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Hi @Yvonne85,

 

Welcome to The HP Support Community.  

 

Thank you for posting your query, I will be glad to help you.

 

I understand your HP OfficeJet Pro 6978 is having trouble with color accuracy, even though your cartridges are full. 

 

Here are some steps you can take to troubleshoot the issue:

 

  • Check Cartridge Alignment: Sometimes misalignment can cause color issues. You can print a cartridge alignment page from the printer’s control panel or settings menu and follow the instructions to realign the cartridges.
  • Clean Printheads: The printheads might be clogged. Use the printer’s built-in cleaning function to clean the printheads. You can find this option in the printer’s maintenance or tools menu.
  • Update Printer Firmware: Ensure your printer’s firmware is up to date. Check the HP website for any available updates and follow the instructions to install them. Update the firmware on an HP printer
  • Check Ink Cartridge Contacts: Sometimes, the contacts on the ink cartridges or inside the printer can get dirty. Remove the cartridges and gently clean the contacts with a dry, lint-free cloth.
  • Perform a Printhead Cleaning: If the standard cleaning doesn’t resolve the issue, you might need to perform a more thorough cleaning. Consult your printer’s manual.
  • Check Color Settings: Ensure that the color settings in your printer software are correctly configured and not set to grayscale or a similar setting that could affect color output.
  • Print a Test Page: Printing a test page or a diagnostic page can help you see if the issue is with all colors or just specific ones. This can help in determining if it’s a cartridge issue or something else.

 

Refer to this document:  HP OfficeJet Pro 6978 All-in-One Printer User manual 

HP OfficeJet 6900, 8010, 8020, 8030 printers - No black ink, wrong colors, other print quality issue...

I hope this helps. 

 

Take care and have a good day.

 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. 


A_Gayathri
HP Support Community Administrator.
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.