64 Bit Compatible All in Ones

Apple does provide a list of printers from different vendors that are AirPrint compatible. AirPrint is an Apple solution that allows networked printer functionality without vendor drivers. AirPrint does not offer scanning features though, and that would remain a vendor responsibility, or in the absence of it, the paid, 64-bit VueScan product may support the scanner without vendor drivers.

All current Brother AIOs are compatible. Brother also publishes a list of older devices that are compatible -- scroll down in the following link: https://support.brother.com/g/s/id/os/macintosh.html

The reason why people are staying away from your question is because the issue is still a little foggy. There's no list of Catalina-compatible printers and scanners because some devices are only waiting for drivers to be written.

According to my research, Brother's hardware is 64bit. I just purchased a Canon TS8320, so I know that All-In-One works. If you buy a printer on Apple's website, they'll all be 64bit capable.

Apple does provide a list but it is outdated and even says that it may be on the list. Here is the link they sent me on 11/18/19. It includes my new brother printer that doesn't work. I don't know who to be more frustrated with - Apple or Brother!

https://support.apple.com/en-us/HT201465

anyway, best of luck!

I can tell you that Brother's printers do not work and neither does the Iprint & Scan software that Brother says will work.

That information is not correct.

I currently have a canon TS9150. It worked perfectly, both for scanning and printing using AirPrint under Mojave.

Now, having done a fresh install of Catalina, it will only print. Trying to scan via System Preferences / Printers & Scanners or using Image Capture results in a "Failed To Open A Connection To The Device (-21355) error.

Using VueScan and the IOS app results in the scanner performing as expected.

Therefore, there is an issue with Catalina internals and the built in scanning functionality.

No, I am afraid you are wrong, see here:

https://support.apple.com/en-gb/guide/mac-help/mh28039/mac

Point 1, Second Paragraph.

Also, my Mojave install was fresh, so no third party drivers.

See my response to your earlier post. You are incorrect that AirPrint provides scanning functionality.