Colours suddenly not printing true

[trollybus]

HP Officejet 6960 recently changed from another 6960 that was scrapped because of failure to print true colours, text and had smears DESPITE following all suggested cleaner/maintenance. Replacement printer worked well for first 40 prints then suddenly started to repeat same problems as before with smears and not printing true colours - eg red is pink.

New ink  - all supplied by HP under ink program - all updates-maintenance done and  yet printer still printing poorly.

I am currently having log in problems with Microsoft following an update a few weeks ago and unable to verify me as user (don't use Hotmail so unable to supply last 3 email addresses (???)). Any help please?

[Echo_Lake]

@trollybus

Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help,  I understand that your printer not printing in colour. I have a few troubleshooting steps we could try to fix the issue:  

• Clean the printhead
• Check the estimated ink levels

• Check the print settings

Click here: Color Ink Not Printing to complete the troubleshooting steps. 

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[trollybus]

Problem was brand new yellow ink cartridge received under ink program. All tests showed cartridge to be fine - except all colour prints lacked yellow; when changed to another new yellow ink cartridge all works well.

[Echo_Lake]

@trollybus

Thank you for posting back. 

I am glad to know that you managed to resolve the issue. Please reach out again for any further assistance.

Have a nice day ahead.