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Streaky color on Officejet Pro 8620

Officejet Pro 8620
macOS 10.13 High Sierra

The color elements of my Officejet Pro 8620 are streaked, especially the blue, but all test blocks except the black/grayscale are streaky. I have run the "clean printheads" over and over.  The current cartridges are all HP, but the previous owner used non-HP cartridges. I have a new set of HP cartridges but I don't want to use them if it is the printhead itself that is fouled and needs replacing. Suggestions, please.



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Message 2 of 2
Flag Post
HP Recommended

Streaky color on Officejet Pro 8620

@Kathleen45, Welcome to HP Support Community!


We do not recommend using non-HP ink cartridges. It may cause damage to the ink system. 


I appreciate your efforts in trying to resolve the issue. 

If you have already performed the steps from the document Fixing Print Quality Problems and the issue persists, it could be a hardware failure.


Please reach out to the HP Support in your region regarding the service options for your printer/printhead replacement.


Hope this helps!


Please click “Accept as 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!

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