When a Brother Printer has a status of "Offline," it is not electronically connected to other devices, such as a laptop or desktop; when your printer is "Online," it is able to connect to other ...
The Brother printer won’t print issue that you are experiencing can be caused by different factors. There might be a paper jam, the printer driver might be corrupted, or the printer might be offline.
If you are unable to print to your installed Brother printer because it is appearing as offline, then you can adjust some of the printer's settings so that you are able to continue printing documents.