How to install printer drivers

As you are showing Catalina, have you checked if your networked printer model is supported in Apple's AirPrint, which negates installing vendor drivers and software. If not supported by AirPrint, the vendor drivers and support software must be 64-bit, or they won't work in Catalina.

Use the guidelines in Apple's article, If you can't print from your Mac or IOS device, and when re-adding the printer, select AirPrint instead of the vendor drivers (if Airprint supported), or the compatible vendor drivers.

Please read the following user tip and restate your question/problem: Writing an Effective Apple Support Communities Question - Apple Community

Have you downloaded the drivers yet? If so open the download package, usually a dmg file, and double click on the installer. Follow the instructions from there.