If your Brother printer is showing as offline on your Mac, it may be due to a few different reasons. Some possible causes include a connectivity issue between the printer and the computer, a problem with the printer driver, or a software conflict.To troubleshoot this issue, there are several steps you can take. First, check to make sure that your printer is turned on and connected to your network. Then, try resetting your printer and restarting your Mac. You may also want to update your printer driver or reinstall it.
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