I am trying to load an updated driver for my HP 7510 for OS Catalina. Where can I get that driver?

Hello pdm0847,

Thanks for asking the Apple Support Communities about printer drivers.

This article mentions: Printer and scanner drivers for Mac - Apple Support

"Many vendors of printers and scanners have adopted driverless technologies such as AirPrint, and they are no longer providing drivers for new devices. If your printer was made in the last several years, it probably doesn't require a driver. This list is provided for reference purposes and is no longer being updated."

If your device needs a driver, please contact the manufacturer for assistance in downloading the correct driver from their website. Cheers.