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‎12-02-2019 06:59 PM

HP Recommended
Product: HP OfficeJet 4650
Operating System: macOS 10.14 Mojave

I have been trying to print something for hours and keep getting this message: wait until the printer finishes before you push in the output tray extender. The message appears without ever printing out my document and then my document disappears from the print queue. 

 

I have read other forums that suggested taking out the power cord and doing a hard reset, updating the firmware, etc etc. I've tried all the suggestions and nothing has worked. Seems like this has been a problem for years based on how far back the forums go. Does anyone actually have a real fix to this problem by now?

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