In case your printer device does not use AirPrint, then you can go to the software update preferences and download the latest software. If you will not update the printer driver, then a message will appear before you stating that the software you want is not available when you try to connect it to the printer.
Step 1: On your Mac, select Apple Menu and then select System Preferences.
Step 2: After that, select Software Update. Install software updates that are listed out for your printer.
If your printer software does not become available even after performing a software update, then you can get in touch with the driver manufacturer for more information.
There is a chance that this is happening because your printer machine is not compatible with the Mac Operating System. In case you installed a printer driver, which you didn’t download from Apple, then the driver will not get updated even after performing a software update.
So, these are the steps that you need to perform in order to update printer software on macOS 10.15 Catalina. If you are still experiencing issues in updating the printer driver then get in touch with the printer manufacturer.