There is a chance that you are facing Brother wireless Printer not printing issue because your printer is offline. To resolve this issue, you need to bring your printer online. Go to the Start menu on your computer and then go to Settings. After that, select the option of Devices under “Printers and Scanners”. After that, select the printer device you are using. Right-click on your Brotherprinter and select the option of see what’s printing. Go to the upper-left corner and select the “Printer” option. Now, the drop-down will open up before you. Now, unselect the option of “Use Printer Offline”.