Please check the following points.

• Was the seal of the toner cartridge pulled out?

• The toner cartridge may be old or damaged, We recommend you replace the toner cartridge. To see how to replace the toner cartridge, click here.

• Remove the paper stack from the tray, fan it, and put it back into the tray.

• The power supply may be defective, If the problem continues contact your dealer or Brother Customer Service.