Question: HP Printer Drivers 5.1 Fail to Install
My HP printer drivers became invalid due to the recent developer certificate issue, so I followed HP's guide to completely uninstall and reinstall the drivers:
HP's site says that, for my printer (CP1518ni), I should install Apple's HP Printer Drivers v5.1 package. I downloaded this package from Apple here:
This installer fails with an error: "This volume does not meet the requirements for this update." So now I have no HP drivers at all, and I cannot install new ones.
(Unfortunately, HP's "Easy Start" and "E-Print" drivers don't work for this printer, nor does Air Print.)
MacBook Pro 15″, macOS 11.0