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If you're having print quality issues Click here for more tips!
Check some of the most frequent questions about Instant Ink: HP INSTANT INK, HP+ PLANS: INK AND TONER.


Check out our Black or Color Ink Not Printing, Other Print Quality Issues info about: Print quality and Cartridge Issues.
HP Recommended
officejet 6600
Microsoft Windows 10 (64-bit)

new cartridges were installed and still yellow prints green, magenta prints purple

1 REPLY 1
HP Recommended

@herbertw6

 

Welcome to the HP support community.

 

Use an automated tool to clean the printhead

  1. Load plain white paper into the tray.

  2. On the printer control panel, touch the Right Arrow () to display more options.

  3. Touch Setup (), and then touch Tools. The Tools Menu displays.

  4. Touch Clean Printhead.

  5. Wait while the printer completes the printhead cleaning process, and then touch OK.

    NOTE: 

    You might have to clean the printhead several times to correct the issue.

  6. Print another Print Quality Diagnostic Page to see if the issue is resolved.

You can refer this HP document for more assistance:- Click here

 

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.

 

 

Sandytechy20
I am an HP Employee

† 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>.