If your Brother printer is printing blank pages, there are several potential causes of the problem. Here are some troubleshooting steps you can take to resolve the issue:
Check the ink or toner levels: Make sure that the cartridges have enough ink or toner to print properly. If they are low, replace them.
Check the printhead: The printhead may be clogged or damaged, preventing ink from flowing properly. Try cleaning the printhead using the printer's cleaning utility or by manually cleaning it with a lint-free cloth and water.
Check the paper: The paper may be too thick or too thin for the printer to handle properly. Make sure that you are using the correct type of paper and that it is loaded correctly in the paper tray.
Check the printer settings: The printer settings may be incorrect, preventing the printer from printing properly. Make sure that the correct paper size, orientation, and other settings are selected in the printer's settings menu.
Update the printer driver: An outdated or corrupt printer driver can also cause printing problems. Check the Brother website for the latest driver updates and install them if necessary.

If none of these steps resolve the issue, it may be necessary to contact Brother customer support or bring the printer to a repair center for further troubleshooting and repair.
Also Read - https://www.fixitprinter.com/how-to-fix-brother-printer-printing-blank-pages/