this update has prevented me using my brother mfc printer what can I do

Check with the Manufacturer of this device for 64 Bit Drivers as Monterey ( as per user profile is showing iMac 27″, macOS 12.1) only supports everything 64 Bit and there is no workaround.

This often happens after an operating system is updated or upgraded. Check the Brother web site for a print driver that is compliant with the new OS. Then download and install it. Sometimes is is also necessary to reset the printer.

Hello,

Thank you.

Brother's ControlCenter has not been updated for macOS Catalina and later versions. You may want to try Apple's Image Capture, or possibly Preview, for scanning.

https://support.brohttps://support.brother.com/g/b/downloadlist.aspx?c=gb&lang=en&prod=mfcj5320dw_eu_as&os=10072

https://support.brother.com/g/b/downloadlist.aspx?c=gb&lang=en&prod=mfcj5320dw_eu_as&os=10072

The Brother MFC-J5320DW is listed in About AirPrint - Apple Support as a model with support for the driverless AirPrint technology. This means that you should be able to use it without having to install drivers, provided that the printer and the computer are connected to the same network (Wi-Fi router). An AirPrint-enabled printer is compatible with macOS (Monterey).

Reset the printing system on your Mac to solve a problem – Apple Support (UK)

Add a printer to your printer list so you can use it on Mac – Apple Support (UK)

Hi,

You may also want to post the exact MFC model, in case someone has specific information about drivers, et cetera.