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HP 6978 won't print black ink

I tried making a photocopy and that too comes out blank.  The printer is neither printing or copying using black ink.  The cartridge is nearly full.  All of them are actually.  Please advise!

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HP 6978 won't print black ink

Having the same problem with 7645

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HP 6978 won't print black ink

Hi @Deb918 and @TJS2,

Welcome to HP Forums, this is a great place to get support, find answers and tips.


Thank you for posting your query. I'll be more than glad to help you.

I understand that you are facing issues with your HP OfficeJet Pro 6978 All-in-One Printer wherein it does not print in black.

 

This issue could occur if the cartridges are not vented properly or the printhead may be defective or damaged.

 

Let's go through a few steps that may help to fix this issue.

 

And here are a few steps in the link: Black Ink is Not Printing

 

If the issue still persists, please contact HP phone support from this link: www.hp.com/contacthp
You may select the country and type the product# of the unit and then follow the on-screen instructions to contact HP phone support.

 

You have a good day ahead.

Rainbow23
I am an HP Employee

If you found this post helpful, you can let others know and also show your appreciation by clicking the Accept as Solution button, Thumbs up" button!

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HP 6978 won't print black ink

I should never have purchased another HP printer. This one is barely a year old. I have cleaned printheads. There is plenty of black ink. I only use HP genuine ink cartridges. Not sure why since this is what happens anyway.

 

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