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‎04-06-2020 09:43 AM

HP Recommended
Product: OfficeJet Pro 6978
Operating System: Microsoft Windows 10 (64-bit)

Help Please!

 

     3 brand new color cartridges (hp) installed. 1 brand new black (hp) installed. Cleaned the heads probably 17 times. Using all my new ink (not black) on test pages. Printer refuses to print black! All drivers are up to date. Reset all printer settings to factory default, still no black. I'm out of ideas. Is there something I can do besides replace this thing?

1 REPLY 1

‎04-06-2020 10:04 AM

HP Recommended

You have a printhead problem, is the warranty still valid?

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