Not sure why / how you are printing a PDF document on your computer from the Edge Browser.
Assuming you have installed the Full Feature Software and updated the Firmware for the printer, you can use an application to print PDF files.
Open the PDF file in Adobe Reader DC
Printicon
Print the document from the application
Example - Print Menu in Adobe Reader:
Reference
Printer Homepage – “Things that are your printer”
Drivers / Software, Videos, Advisories, How-to, Troubleshooting, Manuals, Product Information, more
HP OfficeJet Pro 8720 All-in-One Printer series
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