Your printer shows offline due to various reasons for example if it is set to Offline, or not switched on, or if there’s a connectivity issue. Whenever you face brother printer offline windows 10, the first thing you should do is check if your printer is switched on and in a ready state or not. Next, when you make sure your printer is turned on, check for any error message or code on your printer or computer screen. If there’s an error, first work on its fix and then check if your Brother printer offline still exists. On the other hand, if there’s no error, check the connectivity of your printer with the computer. Also, make sure that the printer is set as default on your PC.