Brother Printer won’t scan to IMac since update

Hi,

It is always easier if the exact printer model is known. You may want to post back with this, and with information about how the printer is connected.

Many Brother printers can use the AirPrint technology.

About AirPrint - Apple Support

Brother recommends using AirPrint with macOS 12 Monterey, when possible. Otherwise, an app called Brother iPrint&Scan is suggested.

Generally speaking, Apple's Image Capture can be used for scanning (a driver may be needed). If nothing else works, there is a third-party commercial product called VueScan.

have you tried going to their site and getting the latest driver for that model?

Brother Drivers: Info & Downloads - Printer Drivers & More | Brother (brother-usa.com)