Cannot find the scanner (Error Code 2019: Initialization Failed)
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Check the following:
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Make sure the scanner is connected to your PC with a USB cable that is supplied with your scanner.
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Make sure you wait at least 10 seconds before using scan applications, after the scanner is connected to your PC.
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Disconnect the USB cable from the scanner and connect it to the scanner again.
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Connect the USB cable to other working USB ports.
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Make sure you log in to your PC and install drivers and software with administrator rights.
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Make sure you log in to your PC and scan documents with administrator rights.
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(macOS 13 or later)
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Check the blocked developers list.
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Reboot the Mac.
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Within 30 minutes, Open System Settings > Privacy & Security.
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Scroll and check under Security.
If any blocked developer message with "Brother Industries, LTD" or "avision" appears, click Allow. If you allowed already, the blocked developers list will not appear.
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Check "DSmobileCapture" permissions.
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From the Apple menu, click System Settings > Privacy & Security.
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Scroll and select Accessibility.
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Make sure "DSmobileCapture" permission is on. To turn permission on, enter your admin password to unlock Privacy & Security settings.
If "DSmobileCapture" does not appear on the list, click +, and then select the DSmobileCapture file from the Desktop.
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(macOS 10.13 - macOS 12)
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Check the blocked developers list.
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Reboot the Mac.
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Within 30 minutes, Open System Preferences > Security & Privacy > General.
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If any blocked developer message with "Brother Industries, LTD" or "avision" appears, click Allow. If you allowed already, the blocked developers list will not appear.
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Make sure you select "DSmobileCapture" in System Preferences > Security & Privacy > Privacy > Accessibility. Click Click the lock to make changes. When prompted, enter your admin password to unlock Security & Privacy preferences. If "DSmobileCapture" does not appear on the list, click +, and then select the DSmobileCapture file from the Desktop.
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If you still cannot find the scanner, follow the steps applicable for your Operating System.
(Windows)
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Click here to uninstall the Scanner Driver.
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Click here to uninstall the Button Manager.
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Reinstall the Scanner Driver and Button Manager by clicking the following links.
(macOS)
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Click here to uninstall the Scanner Driver.
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Click here to reinstall the Scanner Driver.