Downgrade your Mac from macOS Catalina to macOS Mojave.Contact the manufacturer and ask them to develop a 64-bit driver.If they don’t offer a 64-bit driver, you have four options: Visit the manufacturer’s website to get the latest software to use with your printer. Most printer manufacturers already released 64-bit updates to their drivers, so you should check for new updates.ĭiscontinued printers may never get a 64-bit driver, making it very difficult to fix problems with it in macOS Catalina. If your printer needs a driver to work with your Mac, you need a 64-bit version of the driver for macOS Catalina. How do 64-bit apps relate to macOS Catalina printer problems?

Most app developers are ahead of the game on this, since Apple has been working towards the transition to 64-bit apps for several years, and have already released 64-bit versions of their apps.īut there are still a lot of “legacy” apps that developers haven’t upgraded to 64-bit. App developers used this architecture before 64-bit technology superseded it, delivering faster performance with more memory.Īpple explains that 32-bit apps don’t deliver the premium user experience the Mac is designed for. You need a 64-bit printer driver for macOS Catalina Catalina is the first macOS to exclusively use 64-bit apps.Īpple’s latest software upgrade improves the performance of your Mac by losing its 32-bit architecture.

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It’s probably fair to say we’ve all already spent too much of our lives trying to make printers print. This is a common issue in part because Catalina does away with 32-bit apps, which your printer may depend upon. After upgrading to macOS Catalina, you might experience problems trying to print anything from your Mac.

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