Several reasons trigger an offline problem in Brother printer like an out-of-date printer driver, mis configured printer settings, etc. If your
Brother Printer is Offline and you want to get it back online then you must make sure that your printer is running on the latest drivers which can be checked from the official Brother Printer website. Also, you will need to ensure that the network strength is good and your router is having sufficient bandwidth. Sometimes, not selecting your Brother printer as a default device also triggers an offline error and in that case, you will need to choose your Brother machine as a default printer. Contact the printer technician if nothing worked out.