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Locked

‎07-23-2024 08:40 AM

HP Recommended
Product: HP OfficeJet Pro 6978 All-in-One Printer

I replaced ALL new HP cartridges a few days ago. Things were working fine for a couple of days, then no black would print. I ran the clean printer heads for all 3 cycles and faint gray was printed on an MS Word document with no color. I have repeated that process and now NO black is printed again. 

I looked up the fixes and attempted to update the firmware and got a message that I could not use the firmware update. 

I am using a MacBook Pro and it is updated to Mac OS14.3.1

 

Clearly I am very frustrated with finding NO FIX on line and just spent $110 for a whole new set of cartridges. 

 

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