Printer Repair Questions? Ask IT Technicians for Answers ASAP
Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Verify that you replaced the drum, not the toner cartridge. On many Brother printers, the drum is a sort of frame around the toner cartridge, which fits into it.
Then, open the front door of the printer.
Then, hold down the GO button for about 4 seconds continuously. Hold it down hard, don't let it up.
The four LEDs should flash.