colors not printing correctly

[TMW111]

The green prints with yellow stripes.  The blue prints with pink stripes.

I've cleaned the print heads.  The test page is beautiful. But printing then messes up the colors.

[Raj_05]

Hi @TMW111,

Welcome to HP Support Community.

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

It sounds like your HP OfficeJet Pro 6978 is experiencing color printing issues despite cleaning the printheads. Here are a few steps you can take to try and resolve this problem.

• Check Ink Levels: Ensure that all ink cartridges, especially the ones for the colors showing issues (green and blue), have sufficient ink. Low ink levels can sometimes cause printing problems.
• Clean Printheads Again: Perform a deeper cleaning of the printheads. Your printer should have a built-in utility for this in the printer settings or on the control panel.
• Align Printheads: After cleaning, align the printheads. This can also be done through the printer's settings menu or control panel.
• Update Printer Firmware: Ensure your printer has the latest firmware installed. Sometimes firmware updates can fix bugs related to print quality.
• Check Print Settings: Verify that your print settings match the type of paper you're using and the print quality settings are appropriate.
• Use Genuine HP Cartridges: If you're using third-party or refilled cartridges, try switching to genuine HP cartridges. Non-genuine cartridges can sometimes cause color mismatch issues.
• Print a Diagnostic Page: Print another diagnostic page to see if the color bands or stripes still appear. This can help identify whether the issue lies with the printer or the document you're printing.
• Reset Printer: As a last resort, you can try resetting the printer to its factory settings. This should be available in the printer's settings menu.

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. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

Alden4

HP Support 

[TMW111]

I have done all of these things and the printing is getting worse.  The test sheets show the blue and the yellow/green are not printing completely.

Any other ideas?

[Raj_05]

Hi @TMW111,

Thank you for your response, 

I'm sending a private message to assist you with the next 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.

I hope this helps! Keep me posted.

Alden4

HP Support