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HP OfficeJet Pro 8720 All-in-One Printer
Microsoft Windows 11

I bought an HP Officejet 8720 second hand, upon setting up my second hand printer I accidently set up a user name and password. I don't remember it and I can seem to make any changes on my printer. I can't even change the date and time. I remember I was able to make changes on the HP OfficeJet Pro 8720 Embedded Web Server I signed out a week later I couldn't access it and I don't remember the username or password. Please advise. 

 

Printer still hasnt been able to be unlocked even with partial or semi-full reset by any chance is there another way to completely reset the printer? 

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